Originally Posted by DaRollaRacer
Hey Robert,
Have you tried the STI with the Skyline pipe? I tried the 2630 again but the power delivery felt quite flat (even after a retune). I'm going to try dropping a tooth on the second gear pinion to see if it wakes up with the 2630.
Dave
Yes 2630 much better lower temps....the whole nine yards....

have you tried different head clearances with the pipe and different percentages to get a nice tune