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thought its a good value for a tt. The hiper has 3 in pipes. Na's need some back pressure to keep low end torque. Having too high flow of an exhaust on an NA, will gain you power on the top end, but most say its not worth it because the low end power you loose. Even though most aftermarket exhausts for the na are 2.5in, the optimal pipe diameter for an na is 2.25. A member explained it to me once with some formulas that took into account the horse power range of an na and the fact it is a dual exaust. So the best performaning exhaust you could get for your na (and also the cheapest) would be a cutom fabricated one with a 2.25in universal high flow muffler and custum "mandrel" bent cat back piping with a x-pipe welded in. You could also go 2.5 piping if you want a pinch more top end. But if you go with the 2.25 piping, Just be careful to find a muffler shop with a mandrel bender (meaning the pipes are bent with consistent internal diameter) Your other option would be to pick up a prefab 2.5 in exhaust for the na Z, if you don't want to worry about the details, greddy/thermal etc work fine.
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01:16:17 12/04/02
