.63 without a doubt if those are your only two options for that kit

I tried the make and offer deal.. this is the best I got



This post was edited by Killerme99 on Jun 2 2013 03:12pm

.46 is like a t25 supports like 250 hp... im getting a 19t shortly and thats .48 and 6cm exhaust housing and its good to about 350 hp, you have a inline 6 get something way bigger