Hi Everyone, We supplied Magnaflow our Challenger to mock up the systems for the cars ..the sound and fit is excellentwe will be posting up more details today no other changes ...just exhaust and cmr tuned we put down 393 rwhp and 400.25 Torque on a very muggy day in Southern California See attached dyno sheet
Impressive numbers, but how come you guys only pulled the car to 5900 rpm with the cat-back and CMR done? It looks like you ran it to 6100 stock.
I'd be curious to know the numbers with a CMR tune and stock exhaust. Magnaflows never reliably added any HP by themselves until tuning became available. If you were a little rich and Magnaflows leaned you out, you made a couple HP. But if you were already dead on, or slightly lean to start with, you could lose HP. It was a crapshoot in the early days.
Nice. This should give you plenty of time to save up for a new exhaust system when the welds on the Magnaflow fail like Al Gore, and you find out the hard way that "lifetime" at Magnaflow only means "about a year on Earth".
Keith's failed (hard) after approx. 1 year. Both the installer/dealer and Magnaflow flat out refused to warranty any portion of the cat back. They claimed that the system had been modified. Indeed it had. By their dealer. It's awesome that GSM is cool enough to loan out their new Challenger to a company for production testing (I didn't even let my mom drive my truck! No kidding). It's just a bummer that it's with a company with 0.0 customer service and an even lower rating for their installer here in Columbus (Pickups Plus).