Originally Posted by Xdragonxb0i (Post 876681)

How did your car feel after you installed it with a ecu reset? Mines feel sluggish, i definitely need a tune. Do you guys think you need a tune after your header install?

Originally Posted by mashal (Post 876705)

How long has it been since you did your headers?
After I installed my CAI , I reset the ECU and it was "sluggish" for about 5-10 minutes .. Haven't had it happen after that

Originally Posted by Xdragonxb0i (Post 877434)

P&L headers.
@dynoyronics. I was hoping I could run my car without a tune for a few months to save up. Right now. My car isn't enjoyable

Originally Posted by Gixxersixxerman (Post 876703)

I will talk about my brief spin in @Concept 3 LED FRS, but that torque dip is all but gone, just barely noticeable.. And honestly felt like a whole new car, with a whole new sound.. It just pulls so much harder..

Originally Posted by Dynotronics1 (Post 877101)

Trust me, you need a recalibration with the header. We have seen several cases where the header/cai combo are causing a over lean bog due to over scavenging. Tuning is cheap, why chance it ?

Originally Posted by FT-86 SpeedFactory (Post 878381)

Our Firestorm car has been running without a tune for several hundred miles and an open track day with no issues. I sure wasn't easy on the car for the track day either ;) Mods include AEM intake, HKS EL header, Perrin over-pipe, Invidia catted front-pipe, and T1R cat-back.

I will be interested to see the logs on the stock tune. We have tunes waiting for it, but just have not had the time for it. Also, kind of want to see what kind of numbers we are putting down with the stock flash.

Just my .02, I suppose.

Cheers!
-Yo

Originally Posted by FT-86 SpeedFactory (Post 878381)

Our Firestorm car has been running without a tune for several hundred miles and an open track day with no issues. I sure wasn't easy on the car for the track day either ;) Mods include AEM intake, HKS EL header, Perrin over-pipe, Invidia catted front-pipe, and T1R cat-back.

I will be interested to see the logs on the stock tune. We have tunes waiting for it, but just have not had the time for it. Also, kind of want to see what kind of numbers we are putting down with the stock flash.

Just my .02, I suppose.

Cheers!
-Yo

Originally Posted by Tainen (Post 879122)

I've also been running headers for several thousand miles, track days, etc. without a tune.

Lets not flood the forum with bad info- you don't need a tune with headers. At least, not all.

Originally Posted by ft_sjo (Post 879136)

If you don't need a tune, then your headers aren't doing much!

Originally Posted by Tainen (Post 879204)

I've got the dyno numbers that say different. :) I'd love to see them with a tune as well though, some day. Track time is more important right now for me.

I just want to make sure people know that you don't "need" a tune with headers. My AFR looks good, and the headers were designed to be fine on stock tune, and it pulls nice and hard (and these were the first dyno proven headers on the forums, I might add).

Originally Posted by ft_sjo (Post 879211)

No doubt you have before and after dyno runs taken on the same dyno, same day?

Originally Posted by Tainen (Post 879204)

I've got the dyno numbers that say different. :) I'd love to see them with a tune as well though, some day. Track time is more important right now for me.

I just want to make sure people know that you don't "need" a tune with headers. My AFR looks good, and the headers were designed to be fine on stock tune, and it pulls nice and hard (and these were the first dyno proven headers on the forums, I might add).

Originally Posted by mad_sb (Post 879587)

I see you have one of the early prototype nameless headers... no offense but those do not flow as well as the newer 4-1 long tube designs or the yet to be released nameless 4-2-1 long tube (which i am on the waiting list for). For those I believe you are correct that you don't NEED a tune because they did not change the flow / back pressure characteristics as much as the newer long tube 4-1 or 4-2-1 designs.

I still think you would notice a nice difference with a custom tune though because the stock cam timing is the way it is to work around the limitations of the stock header in the dip region.

So, to revise my opinion :) headers that don't flow much better than stock probably won't benefit from, or change afrs enough to warrant a custom tune.