Downpipe diameter
#5
Re: Downpipe diameter
You are talking about two different things. The diameter influences spool time, as does the length of the exhaust. Open downpipe is pretty much the most unrestrictive, and also the shortest lengthwise. Depending on your setup, a 2.5" or 3" is probably a safe bet. 3" becomes a bit of a restriction up above 450whp or so... So plan accordingly.
Thread
Thread Starter
Forum
Replies
Last Post