Post by
lexrob »
https://forums.nicoclub.com/lexrob-u133011.html
Sun Jul 19, 2009 10:09 pm
Thanks guys was not really a issue just didn't really know where to start on that one. Technically "the best exhaust is no exhaust = open header" . Hotter gas moves/expands faster and in some instances causes a scavenging effect overcoming muffler restriction or backpreassure....So thermal wrap def. wouldn't ever be pointless but, yes kinda dumb for like maybe 2-8hp. Im just putting it out there that if you wanted the best exhaust system possible, get the best aftermarket one and wrap it all up or just get a cutout..... Man i read too many articles...
Ill throw this out and see what happens"the whole backpreassure thing for NA turbo whatever is complete crap as long as you have a manifold/header as far as preformance is concerned.