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  1. Performance Chip
  2. Chevrolet
  3. Silverado
  4. 2008
  5. Superchips
FITS 2008 Chevrolet Silverado
Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel

Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel

Item # SU2845
Retail:$445.00
Our Price: $359.96
You Save: $85.04
Performance Chip
Confirmed to Fit
2008 Chevrolet Silverado

4.8L V8 Engine

5.3L V8 Engine

6.0L V8 Engine

6.6L V8 Diesel Engine - Turbocharged

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The best technical support and full performance chip installation instructions. Great price Silverado performance chip and expert service. Chevrolet Silverado, 2008 performance chip by Superchips are available from etrailer.com. For expert service call 1-800-940-8924 to order your Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel part number SU2845, or order online at etrailer.com.
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  • Reviews (42)
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2008 Chevrolet Silverado - Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel

  • Tuner Only
  • Superchips
  • Performance Tuners
  • Flashpaq F5

Conceived with a direct focus on performance results, Flashpaq boosts your Chevrolet Silverado's horsepower and torque. This tuner offers several power levels and user-tunable options so you can get the most out of your engine.


Features:

  • Boosts your vehicle's horsepower and torque
  • Offers several power levels and many user-tunable preferences
    • Tunes for economy, towing, daily driving, and extreme performance
    • Eliminate downshifting when climbing hills
    • Option to return to factory stock for emissions inspections or trips to the dealership
  • Lets you raise the stock speed limit setting
  • Maximizes power by lifting the restrictions on your rev limiter, allowing for maximum rotational speed
  • High-resolution color LCD screen
  • Recalibrates factory speedometer to correct for various tire sizes and gear ratios
  • Adjusts transmission shift points and pressure for optimal drivability and more aggressive shifting
  • Monitors vital engine data to ensure proper functioning
  • Reads and clears diagnostic trouble codes
  • Records, displays and saves 1/4-mile times
  • Plugs directly into your vehicle's OBD-II port
  • Stores easily - small, hand-held device
  • Updates via the Internet, ensuring up-to-the-minute tuning accuracy
    • Simply hook up to your computer's USB port and update in minutes
  • Made in the USA
  • 2-Year limited power train warranty


Note: This product cannot be shipped to or used in California.




2845 Super Chips Flash Pack F 5 Performance Module - Hand Held - GM - Gas and Diesel Engines

Replaces 2842 and 2950

Installation Details SU2845 Installation instructions

California residents: click here


Customer Satisfaction Score:


Customer Reviews

Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel - SU2845

Average Customer Rating:  4.3 out of 5 stars   (42 Customer Reviews)

Conceived with a direct focus on performance results, Flashpaq boosts your vehicle's horsepower and torque. This tuner offers several power levels and user-tunable options so you can get the most out of your engine.

by:

I bought this after installing 4.56 ring and pinion gears in the front a rear axles in my 02 gmc sierra 1500. Due to differences in where wheel speed data is collected between the front and rear axles you'll get an abs warning light if you make any changes in drivetrain bearing. This unit has the ability to adjust the parameters for tire size and gear ratio in order for the ECU to perform the necessary calculations. The result is that the ECU can then realize that both front and rear wheel are in fact rotating at the same speed, which turns of the abs light. I also used a GPS speedometer and adjusted tire size so that the indicated speed matches perfectly a calibrated gps speed perfectly. Its actually more accurate now then it ever was. So I can confirm that this unit will correct both issues you may have. I havnt used any of the "canned" tunes so no comment on performance, towing or mpg gains. Just adjusted the parameters on the stock tune and been running it like that for a year with no issues

Joseph

7/27/2022

1 year later still havnt loaded any other tunes in it, have used the code reader a few times and it works just fine. Basic sure but if the lights on itll tell you why. Speedo still correct and no abs light so it was kinda an expensive fix for just that. Im sure the other tunes are just fine never had a problem with them on my other trucks just never tried them on this one... so yea thumbs up?



by:
2007 Chevrolet Suburban

The tunes that come with it are great! However the other functions aren't all that special. The code reader is basic at best. It wont pull any advanced codes, the $[XX] code reader from wal mart does the same thing. Also when I changed the tire size from the stock 27" to the new 33" it didn't load it properly and caused the brake and ABS warning lights to lose their minds and flash constantly. Overall its overpriced for what you get.



by:
2015 GMC Sierra 1500

Wow! I love this tuner! I enjoy the ability to change the tune from performance to towing in a mater of minutes . I was happy to disable the DOD (cuts off 4 cylinders on light load) and to raise the speed limiter too! very happy!



by:

Not a noticeable gain in any of the modes. I would just buy a cold air intake instead and save your money on this basic tuner.



by:

Truck works better with it. It’s an incremental improvement but noticeable.



by: 04/11/2021
2018 GMC Sierra 2500

The Superchips Flashpaq F5 did exactly what it said it would, Better fuel mileage more power at gas pedal i think its great for the 2500 Gmc 6.0



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by:

I had to update the tuner two times in order to get the tunes for my truck once I got the tune installed it don’t change my shift points in the transmission my first chip I got back in 2000 changed my shift points as well up the horse power .you would think we’d have better technology in 2021.
I had called the tech line about four times and all the techs I talked to were nice and helpful.



by:

This programmer makes a big difference with my 2008 Expedition (5.4 V8, 6 speed auto). Fuel saver mode gave me around 2 mpg better on the highway, Performance 91 gives it a great snarl and significantly more power. Regular 87 mode, after a day or two, had smoother shifting and less gear hunting at low loads. Feels a little more powerful too. I haven't tried towing yet.



by:

First I have to say that ETRAILER has the absolute best customer service out there. When I ordered this over the phone, there was an error that doubled up everything (glitch in the system I believe). Anyway, before shipping, and charging me double for everything, they called me to confirm that was what I really wanted... good thing.

As far as the Superchips is concerned. It's great. Really unlocked my truck's power. So easy, a caveman could set it up. Tells you recommendations (i.e. in performance mode, don't tow, etc.). Also, for Mac users, the Flashpaq F5 is upgradeable on your computer. Just go to the Superchips website, download the "ignition" software and you're good to go. I spoke with Superchips and they acknowledged that's an error on their website. If you're going for fuel economy, go with the "Performance" mode. I've seen easily a 3MPG overall gain in that mode. It's also the one that increases the most torque and HP. Highly recommend this product if you want something simple that will unlock your Cummins while keeping it safe... and you really can't go wrong by ordering from ETRAILER. Seriously, I have ordered tons from them and they are awesome!



by:

The Flashpaq seems to be working really well for fuel economy but I haven't tried it with my 5th wheel yet. If it works as good as the service I had from etrailer, I don't think that I'll have any problems at all. You guys were great with keeping me updated on my order.
Thank you



by:

Had an EDGE tuner for my '08 F250 that I liked better. This one is kind of slow to update the computer (2 files, with lots of ignition off/on cycles). I tried the Performance tune and went for a quick ride. Yep, it worked. Loaded the Towing program, we'll see how that works out.



by:

Simple to use with easy menus and update process via your computer. Don't expect a dramatic power boost with gas engine. I have noticed much improved mid range throttle response, especially at higher elevations. My 2500 HD no longer has to downshift 2 gears to maintain or increase speed on 5 to 6% grades in winding turns in the 45 to 55 mph speed range. Wide open throttle passes at higher speeds seem to be a bit quicker. To soon to form any opinion on fuel mileage.



by:

So far I have only used it on the 87 octane tune setting. Definitely an overall mild improvement in performance. Does not kick out of overdrive while in cruise control mode nearly as often. Picked up at least one possibly two miles per gallon.



by:

Really helped unlocking power at lower RPM with heavy trailer load. Easy to use.



by:

Have this on my 2.7 l F-150 for a year and it definitely adds a little kick and it's great to have the OBD feature



by:

I ordered a Superchips Flashpaq for my 02 Dodge Ram 4.7. ETrailer was one of very few websites that was clear in its discription on wheather or not it would work on my truck. The customer service is great and the price was good.



by:

Easy to use, works great. This in addition to cold air induction and cat back exhaust really woke my truck up.



by:

Great fuel economy it doubled my mpg. The performance is great it adds alot of extra power. Havent tried the towing yet but if i have no dout that it will work just ass good as the rest of the of them. Thanks alot.



by:

Took about 10 mins for the PCM to upload the stock tune then about another 5 minutes to program the Fuel savings tune, I could almost instantly notice a difference. I drive a pretty steep hill on my way to work and always have to downshift and lose speed near the top, not anymore I can take the hill in 5th and Speed up as well. 20 HP doesn’t seem like much but it makes a huge difference. Next text will be when I tow my RV to the coast on the heavy towing tune.



by:

Product arrived on time. Works as advertised. Easy plug and play type interface. Like being able to change my trucks program as I see fit. Would recommend to anyone that likes tweaking cars and trucks.



by:

Easy to follow instructions, had it installed in 5 minutes. Performance has improved noticable.



by:

The superchips f5 Flash paq is horrible it did nothing for my truck but make it lose fuel milage even with economy tune i would not recommend this product to anyone



by:

Thank you etrailer for your awesome customer service. etrailer will be my go to site for all my automobile needs.


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Show More Reviews

See what our Experts say about this Superchips Performance Chip

  • Recommended Shift Points for 2013 Silverado 1500 4x4 LT with the 5.3 and 6 Speed Auto transmission
    The one I recommend is the Superchips Flashpaq F5 Performance Tuner # SU2845 and is the correct model for your 2013 Chevy Silverado 5.3 liter truck. I contacted our technical representative at Superchips about the modifications you have made on your 2013 Chevy Silverado and what shift points they recommend. In the instructions about the downloading function to adjust transmission shift points it states that not all features marked in the chart are guaranteed to work due to unforeseen differences...
    view full answer...
  • Is Horsepower And Torque Affected By Octane Level Of Fuel When Using Performance Programmers
    I called my contact at Superchips and asked what the breakdown for performance is when using the Flashpaq Performance Tuner, part # SU2845. There are 5 settings you can choose from and they are set for the octane level of the fuel you are using. They said for the lowest level of increase using the 87 octane fuel you could expect and increase of about 33 horsepower and 24 torque increase. They said that is dependent on the engine you have in your truck. You can check the VIN and if the letter...
    view full answer...
  • Which Flashpaq F5 Programmer Fits 2017 GMC Sierra with 5.3 liter V8
    SuperChips recommends the Flashpaq F5 part # SU5845 for the 2017 GMC 5.3 liter and for the 2015 model you had they recommended the part # SU2845 which means you would need to upgrade to the new part number.
    view full answer...
  • Superchips Programmer Says Vehicle Not Responding In Chevy Silverado
    Since the Superchips programmer says "vehicle did not respond" the programmer is not able to communicate with the vehicle. The most common reason that a Superchips Programmer on the 2004 Chevy Silverado would not be able to communicate with the vehicle is too many aftermarket electronics so you were correct in unplugging the chime box like you mentioned. Another thing to check is to see if there is a purple wire from the back of the OBD II port then the port is already tapped into by another...
    view full answer...
  • Troubleshooting My 2001 Chevrolet Tahoe 4X4 After Tuner Stolen And Transmission Replaced
    Yes, since you were using the Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel, part # SU2845, you needed to reset your tuner to factory settings before you replaced the transmission on your 2001 Chevrolet Tahoe 4X4. When you replaced your transmission, the tune it was installed under is based upon whatever tune you were using for your previous transmission. But this tune is not based on the new transmission being integrated into your Chevrolet Tahoe's factory OEM settings. This...
    view full answer...
  • What Horsepower Gains will SuperChips Programmer for 2012 GMC Sierra Provide
    The correct Superchips Flashpaq for your 2012 GMC Sierra with a 5.3 liter V8 is the part # SU2845 which will give you up to 14 horsepower, 15 ft lbs of torque and would give you a couple extra miles per gallon. The part number you mentioned would not be a confirmed fit. This unit does not need to be plugged in at all times to function. You could program your truck and then unplug this unit.
    view full answer...
  • Does a Throttle Body Spacer Increase Horsepower on a 2010 Chevy Camaro SS 6.2 Liter
    Airaid doesn't Dyno test the throttle body spacers such as # AR200-630-1 for your 2010 Chevy Camaro with the 6.2 liter Corvette motor. Any gain in horsepower would probably not be noticeable on a vehicle that already has a ton of power. It can help the engine run more efficiently. Using a programmer such as the Flashpaq # SU2845 will provide more power. The estimated power gains are 19.9 horse and 18.3 feet pounds of torque.
    view full answer...
  • Does Installing a Performance Tuner Void The Vehicle Warranty On a 2019 Chevrolet Silverado 3500?
    The Superchips Flashpaq F5 Performance Tuner # SU2845 will not void the warranty. I do see you entered your vehicle as a 2019 Chevrolet Silverado 3500 which you will need the Tuner # SU2847 for as the other is not compatible with your specific gas engine. If you have the Duramax Diesel you will want to go with the Edge Pulsar V3 L5P Inline Tuner # EP34KR. You do not have to make any intake or exhaust modifications to use these different tuners.
    view full answer...
  • How To Improve Fuel Economy On a 2015 GMC Sierra 2500
    The best option to improve fuel economy aside from adjusting driving habits on a 2015 GMC Sierra 2500 would be to use a tuner, the Superchips Flashpaq F5 Performance Tuner part # SU2845 in particular is what I recommend. Realistically, you can except an increase of around 2-3 MPG's.
    view full answer...
  • Can Superchips Flashpaq part # SU2845 Disable AFM on 2017 Chevy Silverado 1500
    Yes, the Superchips Flashpaq part # SU2845 can disable the active fuel management in your 2017 Chevy Silverado 1500. It is not capable of loading custom tunes nor do any of the other options we offer.
    view full answer...
  • Recommended Performance Tuner for a 2014 Chevy Silverado with the 5.3L V8 Engine
    The Superchips Flashpaq F5 Performance Tuner part # SU2845 by itself can offer an increase in horsepower up to 18 HP and torque up to 27 TQ. However, the supporting mods you have and will be installing (intake/exhaust) are really going to complement the tuner well. For example, if the cold air intake gave you 15 HP when installed, the use of the above tuner with this intake will likely increase this number from 15 HP to 20 HP. Please note that the above calculations are not exact figures...
    view full answer...
  • What Would Make Superchips Flashpaq F5 Say Vehicle Did Not Respond on 2005 GMC Yukon?
    Typically when the Superchips Flashpaq F5 # SU2845 you have is reading vehicle did not respond like yours is, it means that there is aftermarket electronics interfering. Check that the purple wire in the back of your OBDII port in your 2005 GMC Yukon doesn't have anything spliced in like an aftermarket stereo etc, however lights would only cause an issue if spliced into this wire. You'll also need to make sure your battery is completely charged.
    view full answer...
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  • Will Using Flashpaq Programmer Performance Tune All the Time Damage a 2004 Chevy Silverado
    With most programmers including the Flashpaq # SU2845 you can have fuel efficiency or power, but usually not both. If you run the programmer at the highest performance tune then it would not damage the truck provided that the truck is not abused and that the truck was in good working order prior to installing the programmer. When in performance mode you can see gains of up to 120 horsepower and 206 feet pounds of torque (with the diesel motor).
    view full answer...
  • Flaspaq F5 Tuner for 2015 Chevy Silverado 1500 6.2L 8-speed Transmission
    In your 2015 Chevy Silverado 1500 6.2L with 8-speed transmission you can use the Flashpaq F5 Performance Tuner model # SU4845 but the F5 Tuner # SU2845 is intended for trucks with the 6-speed transmission so it is not suitable for your 8-speed Silverado. The F5 tuner # SU4845 will allow you to adjust the speed and rev limiters, disable the AFM feature, change transmission shift points and firmness as well as to read and clear DTCs. It comes ready to install as described in the linked instructio...
    view full answer...
    Image 1 for
  • Flashpaq Performance Tuner Power Increase for a 2011 GMC Sierra
    I spoke with my contact for Superchips and he said the Flashpaq F5 Performance Tuner, part # SU2845, will help with your take-off and mid-range power on your 2011 GMC Sierra, however, the increase in power will vary from vehicle to vehicle. Any aftermarket modifications to the vehicle will also affect the performance increases. The towing power levels will increase your mid-range power and the performance power levels will increase your take-off power. This tuner comes with other beneficial...
    view full answer...
  • Will Adding a Transmission and Oil Cooler Increase the Towing Capacity of a 2014 GMC Yukon SLT
    Just adding a transmission cooler and oil cooler will not increase the towing capacity of your 2014 GMC Yukon. The towing capacity of the vehicle is pretty much set in stone. But adding coolers will certainly be beneficial to you and help protect the transmission and motor for excessive heat. I recommend a combination cooler # D15902 so that you can have one unit that can be used for both fluids. I also recommend fitting # D13035 to avoid having to cut and flare transmission lines. Another...
    view full answer...
  • Recommended Performance Tuner for 2014 Chevy Silverado 5.3L
    The Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel # SU2845 is a confirmed fit for your 2014 Chevy Silverado 5.3L with 6 speed trans. It will adjust the transmission shift points and pressure to give you more aggressive shifting. It will also give you gains of up to 18 hp and up to 27 ft lbs torque. If you need the California approved version, it will have the same specs, but is part # SU4845. Let me know if you have further questions.
    view full answer...
  • Does MagnaFlow Exhaust have Flapper Valve to Maintain Tone on a Motor with Active Fuel Management
    MagnaFlow exhaust revolves around the idea of increased flow through the system so things like baffles, chambers, louvers, and flapper valves are eliminated. This allows the system to achieve its tone as well. I know a lot of people like to disable the displacement on demand or active fuel management systems that cut the motor to 4 cylinders when it chooses it is appropriate. If this is something you are interested in then the way to achieve it is to use a programmer that will allow you...
    view full answer...
  • Recommendations for 2007 Chevy 2500 Diesel Fuel Mileage When Towing
    For your 2007 Chevy Silverado 2500 with 6.6L Diesel, the best way to increase your towing and non-towing fuel mileage is to use the Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel # SU2845. Under the performance settings this can give you an increase in up to 82 horsepower and up to 117.3 foot lbs torque. This also has an economy setting and a towing setting to help you out. The Edge # EP26040 is basically the same tuner with the same outputs. I cannot recommend bypassing...
    view full answer...
  • Recommended Performance Tuner for a 2015 Chevy Silverado 2500 6.6L Duramax Engine
    We have a few Superchips options compatible with your 2015 Chevy Silverado 2500. You can choose from the Flashpaq part # SU2845 or the Dashpaq part # SU2050. Between these performance tuners, I recommend the Dashpaq as the best suited option for your truck. This tuner will improve horsepower, torque and gas mileage. If you live in California, the only Superchips option we have for you is the Flashpaq part # SU4845 (Specific to California Emissions). Both tuners have similar features such...
    view full answer...
  • I Have Replaced Parts Before With No Issue, Why Is My Superchips Flashpaq F5 Not Working Right Now
    I would first check to see if there has been an update for your Superchips Flashpaq F5 Performance Tuner - GM - Gas/Diesel, part # SU2845. If so, you should update your software. Once completed, try the tuning process again. According to Superchips, your battery will need slightly more than 12V of power, closer to 12.5V, to make changes to your tune. They recommend you charge your battery, hook it up to a charger, and then try and run the process. The extra power should help complete the...
    view full answer...
  • Troubleshooting Superchips Performance Tuner Not Communicating with GMC Sierra
    I have spoken with my contact at Superchips before regarding the exact issue you are having with your Flashpaq F5 Performance Tuner # SU2845 on your 2004 GMC Sierra. He said that this can sometimes happen on trucks that have a remote start or aftermarket stereo installed. If this is the case on your truck, check the wires going back to the OBD-II port to see if there is anything spliced into the purple wire. If there is, go ahead and remove it. If that doesn't work, also see if it sounds...
    view full answer...
  • How Difficult is it to Set Tunes on the Superchips Flashpaq F5
    We don't have any videos demonstrating the Superchips Flashpaq F5 # SU2845 (Or # SU4845 to be California approved.) but it's fairly easy to use. Setting tunes is literally just a matter of choosing options from a menu and making the changes you want to make.
    view full answer...
  • Best Programmer and Cold Air Kit for 2014 Chevy Silverado 1500 to Help with Fuel Mileage
    For just a programmer that would give you the fuel mileage savings you are looking for the SuperChips part # SU2845 is the most efficient solution. It's the best priced solution and does not come with anything else like the # EP85350 which gives you the same tunes but also doubles as a monitoring system. The best overall solution would be the programmer with cold air intake kit part # SU2845-P11 which will help your fuel mileage in two ways. With a more efficient tune and an intake system...
    view full answer...


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Do you have a question about this Performance Chip?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeff D
Installed by:
Jeff D
Employee Brian B
Written by:
Brian B
Employee Wilson B
Updated by:
Wilson B
Employee Alex H
Updated by:
Alex H

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