[Official] "Do I need a tune with bolt-ons?" thread

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Originally Posted by justsomeguy

Hey guys, I am currently running STILLEN G3 Longtube intakes, ARK GRIP V2 CBE.

Every now and then i'll drive it hard and maybe get a p0300 code and just do a ecu reset and it'll go away. I figured it had something to do with having a more lean AFR while on the top end.

I just purchased a Tomei EXPREME Ti and going to mate it to a motordyne XYZ testpipe modular Y-PIPE and also got some BERK HFCs on the way as well...

My question here is will the ECU be able to adjust this time or will I definitely be running too lean and need a tune?

Thank you.

You would see a definite performance improvement, the general rule is 3 air mods for a tune and you have reached that level