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well considering they are both empty pipes, I can imagine why one would be better than another.
Why would they sound or perform different. I have fabspeed, only because the NHP was not sold at the time. I went to a muffler shop and asked them to make me a pipe, and they refused because it removes a cat and for some reason that it illegal. Fabspeed pipes are way too expensive for what they are, that said they sound, fit and perform great.
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2002 S
Pedro rear stabilizer bar, CF strut braces, Maxspeed headers with 100 cell cats, Fabspeed cat bypass pipes, H&R springs with M030 setup, TRG rear links, EVO air intake, B&M Short shift kit, Raby IMS upgrade, Raby underdrive pulley
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