[bnoon]

Originally Posted by 77ChevySharkBite

I don't want to start a big arguement or anything I just want to know how doing an H pipe on a true dual helps it. Cause to me it seems more or less that it would cause more restriction than anything.
Posted via Mobile Device

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.