Don't give me any **** about searching either cuz that didn't help. I have basic bolts right now and I'm going to replace my piping and do the dc collector mod. Since this mod calls for a 2.5 inch collector then should I run 2.5 all the way back??

 

yea, 2.5 should be fine for a all motor setup. 3 for turblow, 2.5 for N/A

 

2.5 or 2.25 is what you want unless you are going to boost, then run 3inch. Dont run 3in if you arent going to boost, it will be counter productive.

and you didnt search hard enough.

 

Thanx guys. I understand about the 3" piping, I just wasn't sure if I should go 2.5 or 2.25 Thanx again.