going from 1 cat + testpipe to DP

[Flightmedic]

Hey guys will the sound of my car change drastically if I replace the 1st cat and test pipe with the cp-e DP with high flow cat? My car drones alot right now and is running really rich from the looks of my exhaust exit holes in the rear bumper. Will this get worse with the new dp?

 

[superskaterxes]

wow you think it drones now with the MF? thats the least drony exhaust you can buy for this car.....

 

[coyfish]

Magnaflow sounds the most droney imo. Corksport not as bad and my GHL sounds stock when your cruising from the inside. But to your op yes the exhaust will get louder with a DP thats for sure. Get a resonater if you dont have one. Those help. The speed 6 runs rich out of the factory.

 

[lestat13]

I'm running a MS3 with stock catback but catless dp/rp.... it drones like crazy. Sometimes it doesn't seem that bad.... but commuting in stop=and-go at 6:30am it can get VERY annoying. I was just about to post up to see if anyone knew how to remove drone. I'll prob do that anyway. IMO if you don't like the drone now.... don't replace the downpipe!