FI and headers???
Thread Starter
Melting Slicks
Joined: Jan 2003
Posts: 3,251
Likes: 4
FI and headers???
I've been looking to get better low end torque and I was told LT headers will do that. If I install headers now, will I need to retune the car? Or will I get the full benefit without a tune adjustment? I'm just going in stages and I'm worried that I'll be spending $500+ in tuning each time I upgrade 
. 3.42s will be next after the headers. 
. 3.42s will be next after the headers.
Melting Slicks
Joined: Apr 2002
Posts: 2,683
Likes: 0
I had a set of Kooks LT's put on with a hi-flow X-pipe (w/cats)..... I "believe" you could get away without re-tuning as the computer is taking readings from both the MAF & O2's to set the fuel requirements.
Your bigger gain may come from re-tuning, but I don't think you'll be in any trouble without it. I'm sure a more knowledgeable tuner will chime in for ya.
I will say they are WELL WORTH the expense & effort. Let us know how you make out.
Your bigger gain may come from re-tuning, but I don't think you'll be in any trouble without it. I'm sure a more knowledgeable tuner will chime in for ya.
I will say they are WELL WORTH the expense & effort. Let us know how you make out.
Premium Supporting Vendor
Joined: Mar 2001
Posts: 5,241
Likes: 21
From: Knoxville Tennessee
Instead of spending $500 to have the car tuned everytime.
Why not buy the tuning software and do it yourself?.. there are also alot of forum members who could help you.
More satisfaction from your mods that way... to be safe, I would at least have someone check your A/F when you change a major part on the car like that... I am kicking this around on my car as well right now.
Headers to put me of the 600 RWHP mark...
Why not buy the tuning software and do it yourself?.. there are also alot of forum members who could help you.
More satisfaction from your mods that way... to be safe, I would at least have someone check your A/F when you change a major part on the car like that... I am kicking this around on my car as well right now.
Headers to put me of the 600 RWHP mark...
Team Owner
Joined: Jul 2003
Posts: 20,474
Likes: 2
From: Detroit
You can get away without a retune when adding headers, however, as previously stated your benefits will be enhanced with a full dyno tune.
Tuning your car yourself will require not only a $500 LS1-Edit or HPTuners license - it will also require the purchase of a WO2.
Cheers,
Mark
Tuning your car yourself will require not only a $500 LS1-Edit or HPTuners license - it will also require the purchase of a WO2.
Cheers,
Mark
Le Mans Master
Joined: Jan 2001
Posts: 8,238
Likes: 0
From: Lakeland, Center of Florida Fl
If you want good LT to increase bottom end Tq, go with 1 3/4 of an inch. If you goto 1 7/8 it will take away some. The best two headers on the market are LG Motorsports and Kooks both come in 1 3/4.
As stated you do not need retuned for this.
Hope that helps.
Jon Pine
As stated you do not need retuned for this.
Hope that helps.
Jon Pine
