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996 Exhaust system feedback

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My engine 996 3.4 and does not have cats, pipes and mufflers and am having trouble making up my mind, need feedback, here is a picture of the system from hong kong with everything in picture except the tips, $1750 shipped. They use resonators not catalytic converters (cats) so this system would not pass emissions (or would they?) but, I can have aftermarket Cats installed instead for $500 here in phx from GHL (including cats). Second: There is a set of german stock porsche post-4095-1109961348_thumb.jpgcats and mufflers forsale I can buy for around $800 They would sound boring (to quite) but they have the cat pipes and I could by new mufflers GHL for them but that is around $1000.

One of my questions is I do have the stock exhaust headers on the engine and they look well made and efficient, is there much to gain from aftermarket headers?

Two - I do have problems with quality from china but they do make them for there TT race version and look nice also , anyone needs a pictures of them let me know.

Price difference:

China=$2350 (with mods)

ghl/german $1800 (missing headers)


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