The Needswings headers indeed are looking super nice but are a big investment for me.
I read several threads about the performance gains with short/long tube headers on mb, crossfire and supercharged forums. Not too much impressed. I am pretty sure they do make more power than a bigger dimension log header design but only at higher rpmīs on a narrow band. I suspect the average hp/torque gains are better with performance log headers over a wider broader power band especially for me in conjunction with a pulley ratio >2.5.
Anyway. I would like to reduce backpressure as much as possilbe on the exhaust side. Any performamce headers offers are wellcome

Steven

Berlin Germany