Quote:
Originally Posted by Gilley
Go with the 5/16th spacer. It will give you more usable increases lower in the RMP band. The 1/2 spacer will give you a few more peak hp, but it's at the top of the RPM band that you will rarely use.
The MREV is really beneficial for 05-07 6MT Rev-up motors.
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I am actually looking for more sound oppose to more hp. And on the website that i was given here, the more growl was only mentioned for the 1/2" spacer. do you know if the sound gain is the same for 5/16 and 1/2 or different?