Bmwmike

Someone local with a LT4 Z06 is selling a set of ARH long tube headers. I have a LT1 Z51. Anyone know if they are the same? Thanks - Mike

c5racr1

I put a set of Z06 headers on my grand sport. Arh headers. Had to get a npp off a z06

mittens

The headers are the same for both LT1 and LT4 cars.

Bmwmike

thank you

lakemg

Why? Is the ARH Z06 x-pipe not compatible with the GS/Z51 NPP??

c5racr1

I didn’t want the valve in the exhaust

lakemg

Did you get a CEL since the AFM harness is not plugged into AFM valves?

c5racr1

I built an extension harness and cut the valves out of the stock pipes and mounted the valves, and 3 inch section in the fender well. I track my car and didn’t want to burn them up. I did have to do a tune because the exhaust not sounds absolutely horrible in v4 mode so that was disabled. Btw with long tubes you will need a tune, it runs rich in the low rpm range and lean in the upper range.