MagnaFlow Exhaust Installation - 2006 Pontiac Grand Prix GXP

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How to Install a MagnaFlow Exhaust System on a 2006 Pontiac Grand Prix GXP

Today on this 2006 Pontiac Grand Prix GXP we are going to install part number MF16726 from MagnaFlow. The first thing you do is get underneath the vehicle and we will spray down the bolts that are on the exhaust with some penetrant and that should hopefully loosen them up. When a car is a few years, these fasteners will be rusted pretty well so you may end up breaking them. So be prepared to just replace the fasteners. Now we are going to leave this nut partially on for now because we need to hold it up while we disassemble the rest of the exhaust. So we will move on down towards the back of the vehicle and we will add a strap to help hold up the exhaust while we remove the rubber isolators. Ok, we are going to spray down the rubber isolators with some penetrant and go ahead and remove them. It looks like we have them all done on the passenger side. Now we will move over to the driver side and remove those. 1:00

Now we will get an extra set of hands and we will go ahead and remove that one bolt by the catalytic converter and lower everything. We have our existing exhaust system lying out. We will go ahead and lay the pieces to the MagnaFlow system next to it so we can see how everything fits together. Let us go ahead and start putting the new stuff up. We will start off with the resonator. However, it does not have any reassembled studs in here. So we are just going to get new hardware and just bolt it in place. Now I am going to keep everything loose for now. Now we will go ahead and move on to the next one. Alright, we will move on to our next piece right here. We will go ahead and slide on the isolator from the old exhaust. Get a clamp and put it into place. Now I will move to the T-pipe assembly. We will start on the muffler now on the passenger side. We are leaving everything loose for now so we can make our final adjustments later. 1:56

Alright, with all of our major components in place, we will go ahead and straighten them out as we need it and go ahead and start snugging everything down. We have everything sitting the way we want it. Let us go ahead and work on the tips now. Let us go ahead and just slide them on and just adjust them the way you see fit for enough clearance underneath the bumper cover. With all of our clamps snugged down and the exhaust is in the position that we want it, we will go ahead and torque down the bolts as specified in the instructions. Once you have everything torqued down, go ahead and take the protective coverings off the pieces and then we will go ahead and take it for a test drive and see how it sounds. And there you have it for part number MF16726 from MagnaFlow.

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Info for this part was:

Employee Zack K
Video Edited:
Zack K
Employee Rick A
Test Fit:
Rick A
Employee Patrick B
Video by:
Patrick B

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