[wnta1ss]

Originally Posted by KingLT1

Back when Brandon T Hill had his first heads/cam setup(I believe it was GPI SS4 package). It only dropped like a tenth or less 1/4mi with LTH's coming from CA cat delete pipes. The car ran low 10's at the time.

Ok, so the car was faster with headers than it had been with cat deletes, not slower. As I said, I think the 7-hp-loss-with-headers that NA18CamaroSS reported does not make any sense.

[KingLT1]

Originally Posted by wnta1ss

Ok, so the car was faster with headers than it had been with cat deletes, not slower. As I said, I think the 7-hp-loss-with-headers that NA18CamaroSS reported does not make any sense.

I wasn't arguing. I was agreeing that in almost all cases Headers normally show an improvement. I don't think a half a second improvement is normal either. I should have quoted Greg.

[laynlo15]

Originally Posted by KingLT1

I wasn't arguing. I was agreeing that in almost all cases Headers normally show an improvement. I don't think a half a second improvement is normal either. I should have quoted Greg.

Its not and can't tell you why or how it happened. Same dyno, same track similar temps and DA. I was hoping for a couple tenths and shocked it went that fast with me tuning it also. Haha Just some how the right combo that worked well.