Originally Posted by kickass
Put a .1 shim in to make it .4 from .3.
This is good for 20 30 %. Stock is good for 16.
Also run a 7 or 8 sirio plug, it will kickass.
Thomas, the mugen pipe is not as good as the sirio evo 3 pipe.
cheers
Alex.K
no worries man, i will use the siliooo pipe at the summernats, saves my super shiney muuuugen pipe from getting dented!
