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there is a point of (very) diminishing returns. Running side pipes on an NA would be aweful. low end, high end, aweful. A well designed NA catback will provide the proper amount of backpressure to keep the low end strong while still achieving within a pony or two of peak power up top. think about it, would any exhaust manufacturer trust people to know that 15 hp down low is better then 5 up top, when all thats advertised is peak? So that beeing said, The Like ive said, the hiper is ALL WRONG for an NA. If you love the look and the sound, fine. But hiper is not the path to performance. The only real question here is how much the improved pulse width matching of the x-pipe might help. Maverick, i feel like a dick pissing on your parade, but you could just sell hiper for 500$ and then buy the stillen na system for the grand.
Antihero
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