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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fujimura ≠ abbeyRoadCompany ≠ fastIntentions ≠ motordyne ≠ avantGarde ≠ ecutek ≠ nismo ≠ stillen ≠ stoptech ≠ gtm ≠ spl ≠ carbonfiberelement ≠ stance™
Last edited by mag_black; 02-24-2015 at 03:00 PM.
Reason: added more points
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