njm12333

I have an 01 z28 t56. SLP intake, ported and polished stock tb, ls6 intake, long tube headers with true dual 3 inch exhaust with small mufflers. Would it be worth it to get a professional tune done? There is a very reputable tuner who does dyno tunes nearby. Would it be worth it and what could I get out of the car with a tune?

the_merv

iTrader: (88)

If they are a good tuner you'll notice a difference. LT Headers need a tune to get dialed in right.

Y2K_Frenzy

10’ish horsepower maybe?

RPM WS6

iTrader: (3)

If you are done with modifications, at least for the foreseeable future, then I would definitely suggest getting a tune to get the most out of the setup. If you plan other mods in the foreseeable future, I would just wait and get it all done at once.

the_merv

iTrader: (88)

20+ wheel easily with them mods if it's still a stock tune in the PCM. If you saw how under-tuned these cars are from the factory you'd know what I mean.

RevGTO

iTrader: (12)

Yep - 20+ for sure plus so much more torque in the mid-range - power under the curve.

Another option is to buy a tuning suite and learn to do it yourself. I did that years ago, but back then, there was a repository of tunes online that you could match with your mods to give you a baseline. It's a steeper climb these days.

Nonetheless, it gives you the opportunity to continuously modify your tune till you get it where YOU want it, rather than having to be satisfied with someone else's interpretation of your goals.

Y2K_Frenzy

20+ from the tune alone? Or are y’all saying the headers plus the tune equal more than twenty? Example- headers were good for fifteen and the tune “squeezed” another five out of it. When I first got Camaro I was googling around looking at dynos for long tubes on stock motors & it seems likes most stock were gaining around 15’ish horsepower. I remember it being on the lower side to where the “bang for buck meter” wasn’t that good. Cars with cams saw a bigger gain though.

the_merv

iTrader: (88)

You literally quoted my post that answered what you just asked.