So shoud i keep my car 2mm or take it to 3mm?
This is my 2end car and mpg is not a issue, i just want as much power and speed as i can get. My plan is one large turbo and nos, i hear keep 2mm from some and then i here take it to 3mm from the rest.

what is the big dif between them?

 

3mm... a thread a while back posted by RotaryResurrection proved the advantages to 3mm

 

That thread was inconclusive, and I still swear by 2mm.

Rat

 

3mm if your engine needs some protection
2mm if you have it tuned good

 

There will never be an answer... just opinion

 

2mm all the way...