EvoluZion3 Posted June 28, 2007 Share Posted June 28, 2007 can someone explain to me the difference/similarity between the following: Decats Precats Downpipes Wastegate pipes Inconel Manifolds reason being is that i want aftermarket turbo elbows (divorced ones that keep the exhaust gases spinning) but when i look on ebay US these elbows seem to come with the straight decat pipes. i already have PHNW decat pipes (that replace the cat pipes that go onto the exhaust middle section and back boxes). just want to make sure i know what im talking about. Quote Link to comment Share on other sites More sharing options...
olliezx Posted June 28, 2007 Share Posted June 28, 2007 Engine -> Manifold -> Turbo -> Downpipes(may have pre-cats inside)(may also be divorced) -> Cats/Decats Quote Link to comment Share on other sites More sharing options...
kirbz Posted June 28, 2007 Share Posted June 28, 2007 pre cats/downpipes are pretty much the same thing ie what fits before the cat inconel manifold are just a type of material which the manifold is made of wastegate pipes are not relevent in your case unless you get a turbo kit with external wastegates :) Mike Quote Link to comment Share on other sites More sharing options...
Guest andyduff Posted June 28, 2007 Share Posted June 28, 2007 Depending on your car year you may need to have your decats modified to fit correctly. Thats why they usally come as a set :) Quote Link to comment Share on other sites More sharing options...
edk83 Posted June 28, 2007 Share Posted June 28, 2007 i got a set from 2fast2cool for 130 quid comes with all bolts, gaskets, divorced down pipes and decats for 130 quid get them and sell your phnw ones so it wont cost you that much overall The ebay 2fast2cool ones are stainless and very well made. Not the best stainless metal as they were slightly magnetic, but still worth the money imo Quote Link to comment Share on other sites More sharing options...
EvoluZion3 Posted June 28, 2007 Author Share Posted June 28, 2007 ok thanks guys. ive just spoken to Mickey and he's explained that aftermarket elbows are a slightly different shape and so won't fit onto stock decat/cat pipes. my PHNW ones are designed to fit the standard turbo elbows, so it looks like i'll have to do exactly what Ed says, buy the kit, and flog the old ones. :) Quote Link to comment Share on other sites More sharing options...
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