Quote:
Originally Posted by j1980mac
Quote:
Originally Posted by helloelectro
I keep reading that there is no real benefit adding a downpipe to the b58. Is that now not the case?
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The people saying this don't have downpipes. It's night and day. |
It's being said by other reputable tuning companies. I'm not talking about sound FYI, I'm interested in why it's needed for the higher stage map (no meth).