What a tune will do for a bolt car is get the car to run much, much smoother.
The stock tune with bolt-on parts will still do o.k. (The car has a tendency to fall on its proverbial face with bolt-ons and no tune. The first thing that I had noticed is the Race tune is so much easier to drive then the Performance tune. The r.p.m's dropped to fast and was pressed to catch Revs with the clutch (Manual of course.)
Not sure the purpose of the Performance tune; was laborious to drive; in my opinion. The Race tune, hung the revs long enough for me to determine what number I could shift at. Have not tried the Street tune, yet.
In all my adulthood in the world of technology, I realize messing with computers is a crap shoot, I've only changed the tune of my car from Stock tune to the Performance tune to the Race tune. (Don't want the device to have interference while changing the tune, then I am really screwed.)
They should have named the tunes according to what the driver has to do instead of the cars performance. (Or maybe they did, hmmmmm
. Oh the gas usage was a little more admirable, I was not expecting to break in the 11's with only a tune and mods but I am actually happy the mod.
My engine mods are Ebay Ram cold air intake (not pretty as the high end ones does the same.)
Ported throttle-body/with spacers on both intakes.....Performance Products Lower intake......Granetelli Shark upper intake...New Coil on plugs. All stock exhaust.