so i was wondring what type of gains would i be looking at if i had a 2.5" cat back, injen cai and a maf-t? tuned of course.

 

10 whp at the least and 20 whp at the most (for the 3 mods !)

 

^^^^^^Agreed. You won't see much of a gain with the maf because there are only two mods. You might gain 2-3hp with it if that much. Even if it's tuned correctly. In my opinion, a maf translator will only be necessary when installing a new pulley on the supercharger or new cams.

 

iight so if i were to get a 3" pulley in order to get full boost do i have to do the bypass mod?

 

Yes, and for a 3 inch, you still don't need a maf-t. You would get a little more power with it but without it, your car will still be somewhat safe in the a/f ratio mix. So technically you could just slap it on.

 

iight thats cool but how come when i go through some of these post i see that they say the 3" pulley is maxxing out our injectors?

 

Because it is. lol. The injectors still can operate though. I would suggest changing them though.