Quote:
Originally Posted by mag_black
Quality and R&D is probably the number 1 factor/s. Look at Motordyne, it's $500+ for test pipes. I achieved 6-7HP and 5-8TQ just adding them -- the rasp is minimal -- product is a thing of beauty from welds to design.
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I have motordyne ART pipes and are the best IMO....great gains, not annoying loud but a great sounding and good for dd