Quote:
Originally Posted by bnoon
X-pipes and H-pipes have shown to be worth power on dynos pretty much ever since someone thought of doing it. It helps merge high pressure pulse areas and improves scavenging on dual exhaust. You wouldn't need an X or H on a single exhaust so I'm not sure how you're wondering how it wouldn't help on true duals... They wouldn't even be around if they weren't working on dual exhaust.
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That is very but I was told it wasn't necessary to do it, that it wouldn't be giving me that much more power. Would it also depend on your set up to or is it just an overall you should do an x or h pipe? Cause on my truck I have longtube headers, and flowmaster 10 series mufflers which that combo is pretty much the equivalent of running open headers just toned down a couple notches.