What red head pipes make most power? I see turks (RIP) old post of pipe ratings http://www.totallyamaha.net/forums/showthread.php?t=20075&highlight=power
1 Bender(Dynoport)/Power inc end dumps(tie) 124.5hp PI, benders?
2 Hauck/CPR
3 SLP 131.4 hp
4 Power inc centre dumps
5 Aaens
PSI's modblaster and stock blaster
hauck hushers
Info from here
http://www.m-performance.com/Sidor/dyno_yamaha.htm
1 Bender(Dynoport)/Power inc end dumps(tie) 124.5hp PI, benders?
2 Hauck/CPR
3 SLP 131.4 hp
4 Power inc centre dumps
5 Aaens
PSI's modblaster and stock blaster
hauck hushers
Info from here
http://www.m-performance.com/Sidor/dyno_yamaha.htm