Quote:
Originally Posted by jp330Cic.au
Thank You
I am so glad that I read this. I had down pipes on my 335 and it was the best mod. I recently put in an IPE valved cat back system and it sounds a bit better, but down pipes and a tune to keep the waste gates open really was all that you needed.
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Yeah, if you have a good tune, its the best mod you can do for the car.