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AAF M20 Race Header & System

AAF M20 Race Header & System


11620. In stock 20 lbs , ,


This is not the same old M20 header redone.  This is our Tri-Y design that greatly improves exhaust scavenging. Our header has 1-3/4″ primary tubing that pairs opposing cylinders.  In dyno testing our header was able to make 5-10WHP and almost 15ft-lbs Torque over other header types and large leaps over stock manifolds.  We sell this as a complete system with 2-1/2″ from the header back. We tested 3″ exhaust with no gains other than weight. It also has two O2 sensor bungs to make adding a wide band easy. Now lets talk sound!  Our header has a very unique low tone and beefy sound unlike any other system we have seen.

Weld in installation!

Additional information

Weight 20 lbs
Dimensions 40 x 20 x 25 in


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