Join Date: Nov 2006
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Well i can tell you the first thing i would consider and thats cost. Most exhausts only produce a slight increase in power. White Bros makes a great pipe and now that they are no longer in buisness you might find one to fit your ride at substantial savings. Everyone has their opinions so its really personal preference but i like the HMF stuff. It would be easier to find out who makes one for that quad first and then narrow the field.
With your cylinder already being .080 over you might want to consider a pipe that just gives you a slight bit more power verses one that will really produces because with more exhaust there is more air required and with more air comes the more fuel thing and at some point the .080 cylinder is going to start getting hot. Thats when it really didnt matter what you put on the exit plane because the cylinder will just melt down around it anyway.
When you punch out a cylinder that big you really have to consider air/fuel ratios and make sure it NEVER and i mean NEVER runs to hot.
Just my 2 cents...