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Old 04-27-2013, 05:46 AM   #15
Stephen12ZL1


 
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the headers fit fine with no clearance issues around the frame, motor mounts, etc. You must remove the rubber boot on the steering universal joint. I have the car on ramps and the driver's side took a little manipulation to get it to move into position. The passenger side was very easy to slide in. Watch the cometic gaskets they send with the Texas Speed headers as they can fit two ways...one of which will partially block one of the spark plug holes. If you use the stock GM gaskets this would never happen. It is very easy to get the cometic gasket in the wrong orientation and cause a little frustration. I set the header on a jack stand underneath the car to help hold it in position. I haven't tried to fit the connection pipes yet, but they appear slightly too short. The stainless power connection pipes from the other set of headers I have (Smitty's) are 3-4 inches longer. How could this be? I have no idea but it was getting late and my patience was getting short. I will resolve these minor issues today and hopefully drive my car for the first time in 10 days.
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'12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)
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Old 04-27-2013, 09:21 AM   #16
CanadianZL1#992
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Quote:
Originally Posted by hognutz View Post
they don't have to be. kooks are equal lenght headers. they are also way more money. there are cars making a grip of power with these texas speed headers.
I hear you on the money thing. I had mine ceramic coated and didn't get enough change from an 1800.00 dollar bill to get a coffee.
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Old 04-27-2013, 11:14 AM   #17
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I hear you on the money thing. I had mine ceramic coated and didn't get enough change from an 1800.00 dollar bill to get a coffee.
yeah these header threads are always interesting because I will never say anything bad about kooks or american racing as they are a great product but not everbody has $1500 or $1800 at a time. I quite using credit years ago for anthing other than houses. So in my case it is how much money I have to hide from my wife to buy headrs ha ha.

$509 piece of cake, $1800 not so easy.

she liked the car stock so every mod I do is like an unsanctioned deal. causes a big fight. That god I am way tougher than she is and I always win.
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Old 04-27-2013, 11:47 AM   #18
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the connection pipes fit fine after further investigation. Better on the driver's side than the passenger side. There is more slop/adjustment than I thought so that is good. The driver's side 02 is close clearance to the diff cooler line and it needed maybe 1/2" of tweaking to get the 02 sensor to drop in. I bet the SS cars have a mile of clearance without those lines present. The passenger side was fine. Otherwise, everything has wonderful clearance and I must say I feel spoiled. Headers did not fit like this years ago...they were horrible and the starter was always in the way, bolt holes didn't line up well, and they always leaked.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold)
'15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold)
'12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)
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Old 04-27-2013, 12:09 PM   #19
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Quote:
Originally Posted by hognutz View Post
yeah these header threads are always interesting because I will never say anything bad about kooks or american racing as they are a great product but not everbody has $1500 or $1800 at a time. I quite using credit years ago for anthing other than houses. So in my case it is how much money I have to hide from my wife to buy headrs ha ha.

$509 piece of cake, $1800 not so easy.

she liked the car stock so every mod I do is like an unsanctioned deal. causes a big fight. That god I am way tougher than she is and I always win.
I hear you on the $$$$$ I just completed my mods, worked overtime and cut out any extras I could since last October. Took my car to Davenport Motorsports and between the parts I bought and their stage 4 package the total was just over 15K. I was lucky my wife likes the choppy idle and encouraged me to do the cam as well!
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Old 04-27-2013, 12:33 PM   #20
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Quote:
Originally Posted by CanadianZL1#992 View Post
I hear you on the $$$$$ I just completed my mods, worked overtime and cut out any extras I could since last October. Took my car to Davenport Motorsports and between the parts I bought and their stage 4 package the total was just over 15K. I was lucky my wife likes the choppy idle and encouraged me to do the cam as well!
that is nice wife used to be like that. once I started anti sniping and we had kids she has changed her tune haha.

is yours an auto or a manual? I am trying to pic my cam. I think I am cam headers and done with this car then on to another. I am leaning towards the ZR1 cam but the aftermaket cams sound way better but everyone I have driven to date surges a bit in parking lots and such. this still is more a driver to me.
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Old 04-27-2013, 12:39 PM   #21
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Mine's a manual. Just posted a sound clip on another thread about cams. It's LPE GT9
Sounds choppy but smoothens out just off idle
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Old 04-27-2013, 02:28 PM   #22
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Hey just a small recomondation.. mine are a few months old and are rusting around the welds.. if I had to do it over I would coat them with something.
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Old 04-27-2013, 06:07 PM   #23
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iteresting. thanks for the update. sounds like they don't clean the welds propperly.

I think I am going to coat which ever headrs I buy. leaning twoards the JBA 6813SJT's $880 with ti coating. they are 409 instead of 304 but once you coat them you won't have to deal with the surface oxidation of the 409 header.
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Old 07-18-2013, 07:23 PM   #24
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any zl1 sound clips with the TSP headers? had kooks on my 2010 SS and thinking TSP 2" on the ZL1.
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