[Z06] Definitive Yes or No Please
Drifting
Joined: Oct 2003
Posts: 1,624
Likes: 0
From: Chattanooga Tennessee
St. Jude Donor '08-'09
On the coupe I gained almost 40 HP with headers and a Callaway intake. The A/F ratio was spot on as the comp. does do some compensating. I'm sure you can get more seat of your pants feeling after a tune as lots of the torque management is removed and more untamed HP is available to be used sooner. However, I doubt that more than maybe an increase of 5 ponies can be obtained form a tune. I'm not knocking tunes or tuners just my non expert opinion.
Without a tune, headers, cold air intake, cam, etc, are just about useless.
augydog
Last edited by augydog; Jun 15, 2009 at 01:38 PM. Reason: spelling
Safety Car
Joined: Oct 2008
Posts: 4,912
Likes: 266
From: Charleston SC
no, no, and no !!! first headers will make it hotter, under hood, and may melt something, which may make it, not covered under warranty... all the tests i have seen hardly get any more power ,doing this unless ,you do a lot more mods, which will blow away the warranty.. everybody said learn to drive the car, look at ranger, lots of guys with mods, can not run as fast as him.. re-sale with hurt with any mods... rkvetteEven my plug wire boots that are 1 mm away from my headers on my 600+hp BBC don't melt...so I doubt anything else can melt unless they are "on" the header. I've burned my knuckles more than once though
Melting Slicks
Joined: Jul 2008
Posts: 3,047
Likes: 4
Headers will void your warranty, even if your dealer tells you it won't. If you have a major failure the OM, I mean GM reps will make the decision, and they are getting pretty close to voiding warranty claims if you don't run the stock Goodyears.
That being said, they will still warranty other things that aren't related to the drivetrain (faulty switch replacements, etc.).
That being said, they will still warranty other things that aren't related to the drivetrain (faulty switch replacements, etc.).
Le Mans Master
Joined: Sep 2004
Posts: 6,714
Likes: 6
From: Providence RI
Safety Car
Joined: Aug 2006
Posts: 4,206
Likes: 6
From: Makena, Maui & NM
Sure you can run headers with no Tune, but that makes no sens, even economically speaking, why spend 1500 bucks and not take full advantage with a tune. I know my C6 with just headers, there wasn't much difference. Then I started tuning it, a little timing here, a little fuel here, a little less there and wow! that woke her up.
From what I've seen on here, looks like a Z06+header and no tune is a complete waste of time and money.
From what I've seen on here, looks like a Z06+header and no tune is a complete waste of time and money.
Drifting
Joined: Jan 2005
Posts: 1,642
Likes: 0
its a roll of the dice as it depends on the dealer. Im pretty sure you can restore tunes if you ever had to take it back for warranty repair. Just make sure you save an original copy before you start changing parms.
Instructor
Joined: Jan 2009
Posts: 166
Likes: 0
True but a lot of people have headers for the sound.
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Advanced
Joined: Oct 2005
Posts: 60
Likes: 0
On a C6 Z06, headers and tune alone don't really do too much. The car already comes with a pretty decent set of manifolds ( or do they count as headers? ). Most people just do a vararam, catback, and tune to get a decent gain.
Also, its very true what a previous poster said about most people not being able to drive well enough to handle even the stock power to its full potential.
Also, its very true what a previous poster said about most people not being able to drive well enough to handle even the stock power to its full potential.
Burning Brakes
Joined: Nov 2005
Posts: 871
Likes: 66
From: Port St Lucie, FL
Drifting
Joined: Oct 2004
Posts: 1,396
Likes: 0
From: Las Vegas NV
St. Jude Donor '09-'10-'11-'12
Side question, why are you adding headers? Just like the sound or you want more bang for your buck? There are a lot of posts here that give the pros and cons of headers (with and without a tune).
Bottom line, if the warranty is important to you, leave it stock and error on the side of caution.
Safety Car
Joined: Oct 2008
Posts: 4,912
Likes: 266
From: Charleston SC
Actually, based on the amendment of the warranty, a cat back and a CAI could void your warranty too.
Moral of the story: with Gov Motors heading in its present direction, you are better off leaving the car alone and buy something older to mod.
I can't wait for the day that GM will void your warranty because we decide to run aftermarket rims and/or different tires than the originals.
GM's direction on this issue probably started with the Diesel trucks, that were coming in with a window in the block from running 30+psi tunes or transmission's falling out. They wised up with them and applied that same theory to the rest of the fleet. I've known a couple guys that could make 750ftlb with just a tune on their trucks...if only our tune could increase our torque by 150% lol
Moral of the story: with Gov Motors heading in its present direction, you are better off leaving the car alone and buy something older to mod.
I can't wait for the day that GM will void your warranty because we decide to run aftermarket rims and/or different tires than the originals.
GM's direction on this issue probably started with the Diesel trucks, that were coming in with a window in the block from running 30+psi tunes or transmission's falling out. They wised up with them and applied that same theory to the rest of the fleet. I've known a couple guys that could make 750ftlb with just a tune on their trucks...if only our tune could increase our torque by 150% lol
Thread Starter
Le Mans Master
Joined: Dec 2007
Posts: 5,738
Likes: 81
From: Milford NH
[QUOTE=mirage2991;1570478257]Actually, based on the amendment of the warranty, a cat back and a CAI could void your warranty too.
Moral of the story: with Gov Motors heading in its present direction, you are better off leaving the car alone and buy something older to mod.
I can't wait for the day that GM will void your warranty because we decide to run aftermarket rims and/or different tires than the originals.
If that ever happened this would be my last GM vehicle for sure
Moral of the story: with Gov Motors heading in its present direction, you are better off leaving the car alone and buy something older to mod.
I can't wait for the day that GM will void your warranty because we decide to run aftermarket rims and/or different tires than the originals.
If that ever happened this would be my last GM vehicle for sure