I have a stroked Stage 2 bottom end running GN1R heads, BG intake, 70mm tb. Currently have ATR's 1 1/2" primary SS headers and curious if there are any other options and benefits in running a larger primary header for the GN1 style heads for my combo ? Assuming these headers are readily available.
I have seen the larger primary (1 7/8") Stage 2 headers, but have not seen anything larger than 1 1/2 for the GN1 style heads.
Welcome the inputs.
I have seen the larger primary (1 7/8") Stage 2 headers, but have not seen anything larger than 1 1/2 for the GN1 style heads.
Welcome the inputs.