Header Ideas

Gday, just wanted to know if i was to flare out a pipe from the original 40mm header to a 50mm pipe what changes would i have i'm tippin id have to re jet the carb, just wanted to experiment with some new pipes. i already have a q2 fmf muffler now i just want to finish off the whole package. i have a 426

thanks! :excuseme:

I'd expect a free'er flowing head pipe to provide a reduction in torque.

What your talking about won't be a very big change but may move the torque curve a few rpm's higher.

My thoughts..

I think so also, the free-er you let the exhaust out in the head pipe the more torqe you lose down low, overall the rest of the exhaust is smaller wich also may affect things.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now