Headers without a tune?
 

I purchased the Borla UELs but I don't want to get a tune and void my warranty. Ft86speedfactory said it shouldn't be an issue, but I am a little worried that the engine might start running lean. Can I still run them for the next two years until my warranty runs out before getting a tune?

Buy the openflash tablet. Flash to the stage 2 Uel tune. If you need to go to the dealer for warranty use the oft to flash back to stock map. Takes 10mins to flash.

There is no flash counter? and is there a tune for my Borla UEL, Nameless DP/OP and TRD Ctback?

Also curious about the flash counter, I know GM and Ford have been doing it for a few years now.

It's an n/a car...you don't *need* a tune for performance parts. It will run just fine.

I've heard about this mythical flash counter and I have yet to see any evidence for it. OP: minus a header, you don't need a specific tune for those as they don't do anything except add volume to your exhaust. The Stage 2 UEL tune from shiv will work fine for what you have.

While you may not "need" a tune, depending on what you mod you may end up with worse performance, worse mileage, or a poorly running engine without tuning for the mods. Anyone suggesting running a catless header without tuning for it obviously does not know what they are talking about.

you dont want to void your warranty with tuning but you bought headers that removes emission equipment?

I agree with Malt. Even if the mythical flash counter does exist, it's not something the dealer can just check on a whim. From what I understand, they have to send off your ECU to be inspected.

And at that point, something CATASTROPHIC must have happened, since the dealer is willing to go to such lengths in order to deny you warranty work.

I say buy an OpenFlashTablet, flash shiv's Stage 2 UEL Tune, and enjoy your ~25 more horses.

If needed, flash back to stock and remove your headers before having warranty work done.

6000 miles, 3 track days, and a bunch of autocrosses with JDL UEL catless headers, over pipe, catted front pipe, Invidia catback, and an O2 spacer for second sensor (with the occasional CEL but very rare) on stock ROM.

There was an improvement in power over stock, as much as with a tune? Surely not.

You already voided your exhaust component warranty by installing Borla UELs....

To avoid any engine issues, you should get a tune for safe operation.

Use the stage 2 uel tune. ALL TUNES INCLUDED FREE OF CHARGE!!!!!!
Best $500 I have ever spent on my car.

You definitely want a tune with a header. It will usually double (sometimes triple) the gains you get from header alone.

Header without the Tune is like Cereal without Milk.... It works, but works better with the other :).

I ran the RevWork UEL for a few months with an O2 spacer and without a tune and still got a CEL. You're already voiding your warranty by replacing the headers.

I highly recommend getting a tune. You can probably get away without a tune, but not for very long. You risk running too lean and possibly blowing something