No, I am running s2 cams, intake, all i/c piping and i/c changed, f.p. and a few other things untuned. I still average 32 mpg with plenty of safety. Our cars run real rich.

whats a good exhaust manifold to get without upgrading turbo??

a tune isnt needed for just a TBE

dude, dont get an exhuast manifold, just get a ported and coated stocker, i did it and it was best choice i could have made, DC sports n megan both suck, the other guy is right, full race or go home

and to the guy who asked about the injen kit, im running the same kit, intake makes u here the BOV alot, lower pipe helps spool and if your already tuned you will need to get retuned cause it will go lean above 4-5k (my new speed source is better in my opinion) and the upper bolts in very nicly and works well to decrease boost taper IMO

Yeah, I have the Injen Intake, as well, and the BOV is loud!

I ran mine for nearly a year with no tune. A turbo back Exhaust and intake. I got it tuned when i installed the fuel pump and boost controller

same here, I took care of most bolt-ons then got my tune

That s the best way to go about it in many peoples eyes do most or all the bolt-ons
then get it tuned.

Evo ix Rs tbe, mbc, 02 housing, wal 255 fuel pump, c spec tune and more soon

you can put on alot of mods with out needing a tune, but the tune is what is going to make your power and save your gas mileage. Plus untuned evos are boring to drive

that explains everything.... i wondered why i was getting horrible gas... i wwas like it sucking in gas like no other when i was driving the other day hahaha