Just bought a '10 C63, time to make it faster. HELP??
I talked with Andy today about the headers and how loud they are. Has anyone added resonators to their exhaust to try to quieten it down any? How much louder is the car from the inside during normal driving? He suggested an X-pipe to help quieten the exhaust some but I didnt know how much this would help if any? I personally think any x-pipe makes a car sound raspy and more high-pitched. I have always been an H-pipe fan when it comes to sound I know an xpipe may make another few HP but not a big difference. Doesn anyone have an H-pipe on their car?
Does anyone have cats added to their MHP exhaust? If so did it quieten it down any? I dont really car about the smell from going catless.
If you're worried about the sound level, you need to get the x pipe to replace the secondary cats. I would get it anyway as it will add some hp and smooth out the exhaust note, just a bit.
The stock resonators are basically an H pipe so you already have that.
More information about the flash loader can be found here: http://oetuning.com/blog/?p=727
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