Quote:
Originally Posted by AMS Performance
After confirmation, it appears the set I got my hands one was their 1st gen set of headers. It used to be a Tri-Y design, now its a 4-1 design. The newer 4-1 design is better than their older design. 4-1 has its benefits as does Tri-Y. Tri-y's are typically better for torque, 4-1 for HP.
Ideally the best thing would be to run a true Equal length Long tube 4-1 header (kleemanns aren't really long tubes, Long tubes would go all the way down by the tranny then merge).
The only way to really squeeze out all the power is to scrap the entire stock system and do full long tubes and custom design a system from scratch, dyno tune, make adjustments & etc. It would probably cost you $5k min and its not cheap to do so.
You can get most of the way there though simply by making a few changes to the OEM system for a small fraction of the cost.
However, one thing seems to be certain... running zero cats can cause serious torque loss if the system isn't designed properly.
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wont the true long tube headers hurt the rev range power cause we ca only rev the car up to 6k rpm.......