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I doubt these make a difference.Downpipes with high flow cats... Definitely. In fact, downpipes are probably the only exhaust mod that would give you some decent HP. Plus you would heard the turbo spool more.Probably sounds better than any aftermarket exhaust too, by just using downpipes only like this:https://youtu.be/uzQFvTHAyV8
I doubt these make a difference.
Downpipes with high flow cats... Definitely. In fact, downpipes are probably the only exhaust mod that would give you some decent HP. Plus you would heard the turbo spool more.
Probably sounds better than any aftermarket exhaust too, by just using downpipes only like this:
https://youtu.be/uzQFvTHAyV8
