Installation Time: Less than 1 Hour
January 22, 2019
First mod for my new S550
Ordered this exhaust from AM on a Wednesday and got it today (Tuesday).
Everything boxed securely. Cosmetic finish of the setup is good. The welds look OK a little chunky and splattery but of course nobody sees the welds when it’s installed. The tips are nicely polished and have the Rousch ‘R’ lightly white laser etched an inch tall on the left side of the left tip set and right side of right tip set so it shows when installed. Rousch is also stamped on the bottom of each muffler, Two Rousch decals included in the box.
Installed after putting the car on jack stands. Note if you’re doing it on stands there is very little clearance for the sawzall and blade so you’ll have to cut the pipe from the bottom up. Cutting the stock exhaust off was easy with a carbide Diablo sawzall blade. Took at most 10 seconds per side after finding the right spot to cut. Both mufflers slipped into the rubber isolators and into the cut exhaust stubs with ease. 3/8” impact driver with 15mm deep drive socket was plenty to get them secured. Tips fasten with the same size clamps and weren’t too hard to get on straight. When looking from the back the tips look like they hang low but it’s an optical illusion. The tip material is thicker than factory and the inner diameter looks a little smaller. They have the same drop as the factory ones. Total job took 40 minutes but I do similar work daily so plan for 1.5 hours if you don’t do much work with tools.
This was my first modification to my PP1 ‘18 GT. With the resonator still installed it really wakes up the sound just to that perfect sweet spot. This is my 80 mile commute daily driver and on the way to work there is less cabin noise than factory cruising at 70-80mph. But get it over 2K RPM’s and you’ll really know it’s there. Get it over 5K rpm and it screams how you want it to. Overall the sound is cleaner, more pronounced, but not excessive. Deeper bass tone than factory, more rasp, some extra pops when revving and downshifting.
Definitely recommended if you like the stock exhaust sound, but you want more of it. This is the loudest I would personally want for a daily driver. Would recommend and buy again. Thanks AM and Rousch!