Quote:
Originally Posted by hooey_b
I've been wondering, what is the best sized diameter exhaust to have for a vq37vhr? I've got some janky ish going on underneath with a "custom" single piece catback and some bolt ons, but have been...apprehensive on pullling the trigger on an exhaust.
I'd like to know the best size, 3" or 2.75"? I'm currently NA going flex, then boost.
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if you are doing a y pipe into a single do 3" for na