I'm trying to figure out what brand rev box you guys running ?
I already order AMR big coil kit
W/E2 pipe
155 main jet
foam filter
looking for a header if anyone has one?
Have you done anything with your valves or valve springs? I only ask because on the 400 forum they say the springs are not strong enough for a rev box and will fail.
my o4 ltz has a rev max but also has valve work,hot cams,high comp piston. sounds like you better get a mechanic before you end up bustin up the bike :'(. Then your gonna spend lots of $$$ to get it fixed. :'(
alright! it looks like am going to get the engine done inside before getting rev box. good looking out thanks