1. Exhaust Systems
  2. MagnaFlow
  3. Cat-Back Exhaust
  4. 4 Inch
  5. Rear Exit - Single - Curved - Passenger Side
  6. Gas
MagnaFlow Cat-Back Exhaust System - Stainless Steel - Gas

MagnaFlow Cat-Back Exhaust System - Stainless Steel - Gas

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Exhaust Systems

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MF15304 - Gas MagnaFlow Cat-Back Exhaust
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This cat-back exhaust has technologically advanced, mandrel-bent tubing and a performance muffler, which allow exhaust to flow freely through the system. This improves engine performance, boosting horsepower and torque. Call 800-298-1624 to order MagnaFlow exhaust systems part number MF15304 or order online at etrailer.com. Free expert support on all MagnaFlow products. Guaranteed Lowest Price and Fastest Shipping for MagnaFlow Cat-Back Exhaust System - Stainless Steel - Gas. Exhaust Systems reviews from real customers.
  • All Info
  • Reviews (21)
  • Q & A (0)
  • Photos
  • Why etrailer?

MagnaFlow Exhaust Systems

  • Cat-Back Exhaust
  • 4 Inch
  • Rear Exit - Single - Curved - Passenger Side
  • Gas
  • 3 Inch
  • MagnaFlow
  • Stainless Steel
  • Single
  • 1

This cat-back exhaust has technologically advanced, mandrel-bent tubing and a performance muffler, which allow exhaust to flow freely through the system. This improves engine performance, boosting horsepower and torque.


Features:

  • Improves engine performance thereby increasing horsepower, torque, and fuel efficiency
  • Mandrel-bent tubes allow for unrestricted airflow by maintaining the same diameter through every curve
    • Unrestricted airflow decreases back pressure ("exhaust turbulence")
  • Each performance muffler has a stainless steel, perforated core that runs straight through, end to end
    • Stainless steel wool layer insulates perforated core to absorb noise, shield against high exhaust temperatures, and prevent blowouts
    • No baffles, chambers, or louvers that restrict airflow
  • Boasts MagnaFlow's signature sound, which is deep and throaty on the throttle but quiet inside your vehicle
  • Made of 100-percent stainless steel to resist corrosion
  • Includes 1 tip, as well as clamps and hangers for installation
  • Custom fit for your vehicle
  • Made in the USA


Specs:

  • Tubing diameter: 2-1/2" and 3"
  • Muffler dimensions: 5" tall x 11" wide x 22" long
  • Tip diameter: 4"
  • Number of tips included: 1
  • Exhaust system: single
  • Exit position: passenger side rear
  • Lifetime warranty


The cat-back system is the portion of the exhaust system from the outlet of the catalytic converter back to the tailpipe. MagnaFlow systems boast mandrel bent tubes that allow for unrestricted airflow by maintaining the same diameter through every curve. This consistency in diameter decreases back pressure in order to boost power.


Each MagnaFlow performance muffler has a stainless steel, perforated core that runs through it - end to end - with no baffles, chambers, or louvers that restrict airflow. A stainless steel wool layer insulates the perforated core to absorb noise, shield against high exhaust temperatures, and prevent blowouts. Together, the mandrel-bent tubes and muffler in this system increase horsepower, torque, and fuel efficiency.


MagnaFlow's signature sound is deep and throaty on the throttle while remaining quiet inside your vehicle. All system components are made with 100-percent stainless steel to resist corrosion. Clamps and hangers are included for installing onto the OEM exhaust system. MagnaFlow provides a lifetime warranty on all stainless steel exhaust systems.



15304 Magna Flow Catback Exhaust System - Stainless Steel - Gas

Item # MF15304

Installation Details MF15304 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

MagnaFlow Cat-Back Exhaust System - Stainless Steel - Gas - MF15304

Average Customer Rating:  4.5 out of 5 stars   (21 Customer Reviews)

This cat-back exhaust has technologically advanced, mandrel-bent tubing and a performance muffler, which allow exhaust to flow freely through the system. This improves engine performance, boosting horsepower and torque.

- MF15327
by:

Review from a similar Catback Exhaust in Exhaust Systems


Installation was easy, perfect fit, sounds great and engine roars! Thanks etrailer for the great customer service and MagnaFlow for a great product!



- MF15718
by:

Review from a similar Catback Exhaust in Exhaust Systems


Great customer care and service from Chris and the Etrailer employee's. Got back to me to let me know of a item was back ordered from a manufacturer, didn't try to over sell me on products, asked what I'd like to do. Helped me make changes to my purchase that I needed right away. Two days later they now have my business shopping loyalty from here on out. I can't thank you guys enough.



- MF15665
by:

Review from a similar Catback Exhaust in Exhaust Systems


Have to say that I was a bit skeptical at first, as I don't know anyone that has installed this particular kit. After installation, I am pleased to report that it has exceeded my high expectations. Kit came complete with everything needed to install (less the flange bolts). Initial sound was excellent...not too loud that it bothers the kids while they're sleeping in the car, but deep and loud enough to turn some heads. Excellent experience dealing with Etrailer as well. Will not hesitate to do business with them in the future. Thanks again for the super fast shipping and excellent customer service!


Comments
So during highway driving the drone is at a minimum? I have kids too and we take a lot of family trips. My concern is the drone. thanks,
-- comment by: B. K - 08/16/2014

Comments
Response to B. Kallan~ Highway noise is quite bearable, unless youre knee deep in your pedal. Going uphill it will be much louder, as it will with any acceleration. Constant highway speeds will result in a nice, mellow sound. Hope this helps!
-- comment by: Dave - 08/18/2014


- MF19019
by:

Review from a similar Catback Exhaust in Exhaust Systems


Hardest part of installation was getting the truck high enough off the ground to get the factory exhaust over the axle. The new system was relatively easy and fit perfect. The spare tire does not fit underneath with this kit installed. I put a Tire Buddy in the bed to hold the full sized spare. The heavy duty factory receiver hitch is not in the way. System has a mellow purr that should be street legal everywhere yet is semi-aggressive. No blatting or popping. Chrome tips seem to always get black with soot and need to be cleaned often. This is a premium system and should last the life of your truck. It is well supported and doesn't vibrate. I highly recommend it. If Chevy had this as an option they would sell lots more trucks.



- MF16636
by:

Review from a similar Catback Exhaust in Exhaust Systems


The exhaust system fit perfectly, sounds great, and looks stylish. The exhaust tone is not overly loud, yet sounds much more powerful than the stock system did.


Comments
The exhaust system has been awesome
Ron L - 01/15/2021


- MF15357
by:

Review from a similar Catback Exhaust in Exhaust Systems


My Magnaflow cat back exhaust system on my 2016 VW GTI gave me more of the sound I wanted for my little sports car, and it looks so much better than the stock exhaust system. Meaning: the stock muffler, which shows horizontally at the rear of the vehicle, looks like an afterthought, just a metal can. The muffler on the Magnaflow is hidden in a pocket near the center of the undercarriage, so it doesn't show at all. What is visible at the rear are the dual stainless steel pipes. In addition, the exhaust tips on the Magnaflow are larger in diameter to accommodate the larger diameter pipes, and therefore look more aggressive. I am very satisfied with the setup.


Comments
All is very well. No problems of any kind. Still enjoying the sound and the look.
Bob - 04/18/2019



- MF16564
by:

Review from a similar Catback Exhaust in Exhaust Systems


Very good performance and sounds installed myself in driveway in under 45 minutes. service was great from e-trailer.


Comments
Love the sound and performance With exhaust and Volant cold air intake and Superchips programmer we get 20-22 miles per gallon on the hwy.
John P - 07/23/2017



- MF16627
by:

Review from a similar Catback Exhaust in Exhaust Systems


Nice addition, not too loud and yet good rumble. Easy installation and would recommend it.



- MF16830
by:

Review from a similar Catback Exhaust in Exhaust Systems


Product nice. Fit could be better for trans am. Tail pipes don't show. Had to make extensions. Works ok now



- MF16669
by:

Review from a similar Catback Exhaust in Exhaust Systems


Not a great fit on my 2009 This kit sounds and looks great, but the three bolt cat flange didnt fit my truck, it required machining to spread the holes further apart, just a heads up my honda ridgeline was built in june of 2009 and the install took 5 hrs because of this issue, however when finished it sounds and looks great.



- MF15811
by:

Review from a similar Catback Exhaust in Exhaust Systems


I am well pleased with the system itself. This was actually a replacement under the warranty, and the previous system lasted seven years, here in the rust belt. Only complaint was the necessity of returning to manufacturer for inspection prior to receiving replacement. That meant my truck was down for about a month.



- MF15857
by:

Review from a similar Catback Exhaust in Exhaust Systems


nice and growly sounding, helpful tip spay some wd 40 on ends before fitting together, helps to slide the parts together easier.



- MF15356
by:

Review from a similar Catback Exhaust in Exhaust Systems


I believe it is the best exhaust on the market for this application. only thing is the exhaust tip needs bent down more as it touches the body and will melt plastic.



- MF16520
by:

Review from a similar Catback Exhaust in Exhaust Systems


Not a direct Fit Sounds good but had to modify rear brackets and drill holes in the frame to install on 09 F150 crew cab..not impressed with fitment or installation time..modification time caused loss of profit..



- MF16625
by:

Review from a similar Catback Exhaust in Exhaust Systems


Easy install, perfect fit on my 07 Tacoma. After computer reset, several miles, truck runs Awsome. Great seat of pants torque increase, combined with my Injen cold are intake truck is way quick and has much throatier note.



- MF16537
by:

Review from a similar Catback Exhaust in Exhaust Systems


I am so disappointed with this product ..i spend almost a grand and the sound of the exhaust is not good at all... I wish i can return this ...



- MF15333
by:

Review from a similar Catback Exhaust in Exhaust Systems


Excellent exhaust note through out the entire RPM range! Highly recommended this cat back system.



- MF15318
by:

Review from a similar Catback Exhaust in Exhaust Systems


Bought the magnaflow exhaust for my 2015 GMC. Everyone says how great it sounds. Price was good and easy to install.


Comments
Sounds great, with added preformanc. Couldnt be happier.
Ken z - 07/08/2017



- MF16726
by:

Review from a similar Catback Exhaust in Exhaust Systems


The MagnaFlow exhaust looks and sounds awesome. Not only that but the stainless steel construction and lifetime warranty gives me peace of mind.



- MF15327
by:

Review from a similar Catback Exhaust in Exhaust Systems


Easy to install sounds great I love the product it looks good too I'll try to get pictures up later



- MF16656
by:

Review from a similar Catback Exhaust in Exhaust Systems



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Ask the Experts about this MagnaFlow Exhaust Systems

  • Exhaust System Recommendation for a 2014 Toyota Tundra with 5.7 Liter
    A resonator tip like the part # PM-5104 that you referenced is designed to actually increase sound so it wouldn't be what I would recommend for the drone you are experiencing. If you are looking to reduce drone your only option would be to go with a chambered muffler to replace the bullet muffler you currently have. The easiest solution I can make for you would be to go with a Magnaflow part # MF15304 if you have a Crewmax or Double cab. Your other option would be to take your...
    view full answer...



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Info for this part was:

Employee Tricia G
Written by:
Tricia G

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