2007 cts v exhaust question
Any help is appreciated.
If it's just the mufflers that are 2.25" and the rest of the piping is 2.5" then I wouldn't really worry about it. You're not going to lose more than 1-2hp from that (if any).
Now if they chopped off your entire exhaust and made it 2.25" then yeah I'd be worried. Also your car is feeling sluggish from high ambient temperatures outside, not from slightly smaller mufflers.


