Originally Posted by
BoilerUpXFire
Is there a possibiity that there is no power to be made in that area? Exhaust mods give us virtually no power and perhaps several companies have stepped up, and scrapped the job because there were no gains. Just because the SC and TT motors love them, doesn't mean they will react the same with our motors, IIRC they see decent gains with custom exhaust components as well.
Supersprint markets headers for the R171 but shows a very modest gain for over $2,000...
Supersprint North America : Headers
Nothing for R170.
The Eurocharged C32 headers yield great gains, but we've never really been able to utilize them because of the directions the collectors point. C32 headers point outward, SLK/Crossfire manifolds wrap around the rear of the motor. Why that makes a huge difference, is beyond me.
Les noticed a upper-RPM power increase with the NW downpipes, but a loss of torque.
This car, for whatever reason, simply doesn't respond like every other platform on earth LOL. Might have something to do with the 3-valve setup? Grasping for straws here....