Retune Needed?
 

If i change from HFC to resonated test pipes should i get it retuned?

It probably isn't critical, although you may be able to run a bit more spark advance.

Do you currently have Uprev?

I say yes..

im about to get ecutek done on the 22nd, but i was thinking about getting fast intentions resonated test pipes.

Yes retune and FI's stuff is A++ why not hfc's tho . You'll make the same power ( 2-3 WHP diff only)

Please post I dyno sheet ! No one has on of theses yet an EVERYONE wants to see it compared to UPREV . What other mods you have . Nice auto like me :)

Then, yes, a tune is recommended.

This will also circumnavigate the potential problem of CEL's due to unhappy 2ndary O2 sensors.

no worries, might just stick with HFC's. i will post my before and after dyno when i get it done.

current mods are: stillen g3, lightweight pulleys, fast intentions exhaust, stillen HFCs, 4.08 final drive, motordyne manifold. I think thats it.

You'll also need a flash to fix the 4.08 final drive CC Error.

yeah thanks i noticed that was available. not that i use CC that much anyways lol

Yeah, but it's almost 2014.. no one should be rolling around with warning lights on the dash!

I enjoy the sound of my Testpipes much more than the latest HFC I had

i dont have any warning lights on my dash. just when i go to use cruise control it just flickers and then goes out.

That's a CC fault code.. same thing.

still waiting to see ONE example of a car that was previously tuned with Uprev making more power with ecutek....

its been MONTHS guys... anything?

I've seen more than one car make more power after going back to stock.. That says it all for me.




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