Bolt-on horesepower gains?

[FloridaGT]

From everything I've read on here, it seems like the 2015+ GT doesn't respond to bolt-ons at all without a tune. Is that basically the case?

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[Jeff's FRC]

Pretty much. Anything you bolt on that doesn't require a tune will show minimum gains.

 

[MyLilPony]

From everything I've read on here, it seems like the 2015+ GT doesn't respond to bolt-ons at all without a tune. Is that basically the case?

No tune no Extra hp that is note worthy.

 

[wimbrow]

tune affect mpg?

Pretty much. Anything you bolt on that doesn't require a tune will show minimum gains.

hi jeff, how does a tune affect MPG? thanks

 

[Higgs Boson]

hi jeff, how does a tune affect MPG? thanks

little to no effect. you can tweak a couple things but MPG is performed and calculated generally during closed loop operation so there is no real way to lean out the mixture and pick up MPG.

you will affect it much more by using your foot to control the pedal, driving downhill and avoiding head winds.

 

[Chameleon]

In short, yes.

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