strait piping on a NA car sounds horrible i think. im a believer in some backpressure is good. a free flow muffler may sound like a good idea, but when you cant accelerate under 4000 rpms because you went with 2.5 inch piping(on a d serise) no resonator and a strait through muffler design, you will loose power. i have a greddy cat back. its got a resonator, and a real muffler.. not a strait through deisign. no back pressure looses TONS of low end, but will yeild slightly better high end gains
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Black Vtec Prelude-h22a power'd
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