Hi friends,
I have 2 exhaust header one with inside diameter 13mm and one with inside diameter 15mm , with one is better for CMB Valvola RSV07?
I dont know with exhaust header is for Valvola a with is for old engine LS
thanks
Pavel
I have 2 exhaust header one with inside diameter 13mm and one with inside diameter 15mm , with one is better for CMB Valvola RSV07?
I dont know with exhaust header is for Valvola a with is for old engine LS
thanks
Pavel

