I have found that if you remove the "Pea Shooter" from the stock exhaust end cap, remove the intake snokel and rejet (140 - 155 main) you will get about the same gains as aftermarket exhaust systems (with there recommended jetting and mods). The only advantage of the aftermarket systems I see is that they a a few pounds lighter and look better. I run neck and neck with aftermarket modified Z's and beat stockers. Keep in mind when you read articles in magazines that the magazines get there money from advertisers such as aftermarket suppliers.

It's your money !!

 

trinity racing has just come up with a new exhaust that they claim gains of 5 hp. the stage 2 kit comes with a stage 4 head pipe and silencer, billit intake adapter, K&N filter, and jet kit for $512. i have ordered mine and it will ship out of the first ever batch produced. i should have it next wed. i cant wait.

 

I will sell you my Trinity Full exhaust for 350.00 shipped.

I will even include an extra brand new header pipe and the spark arrestor so you can add it when you need it.

 

did u not like the pipe? bad sound? bad performance? if not why so cheap?