Pair Mod

bronc3

Registered
What is involved with the pair mod and what are the benefits/drawbacks?Sounds like AIR removal on an older car........
 
The pair valve introduces fresh air into the exhaust, lowering emissions.

Two mods available:
1) pair removal - no power increase, lose couple pounds.
2) pair sucker mod - creates lower pressure in crankcase, theoretically helping piston rings seal better. Has produced 3+ hp on dyno on some bikes.
 
Back
Top