the trinity pipe is made by a sub-contractor named power pro's. they also make CT racings pipes and Big Gun. if you looking for looks rather than quality, go with the trinity. if HP is your demon go with either the hmf slip on or the HPResearch modded end cap on your stock pipe.

aftermarket pipes will typically gain from mid to top or just top end. your stock pipe will work from idle all the way up if properly modded. JMO!

 

the end cap on the trinity is 2" and the ron woods end cap is 2 5/16". i just thought i would throw that in.

 

My pipe was in real good condition, and sold on E-Bay.