C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

shorty headers (CA)

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Old Sep 30, 2004 | 02:21 AM
  #21  
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Originally Posted by Renegade21
So I have to put these in myself, huh, since they're illegal a shop can't put em in? I wouldn't be able to do it with like me and my dad, putting the front 2 wheels on little 1-ft high ramps would I? do they bolt on?
These didn't seem any harder to install than my shorties. I did mine on two jackstands in garage. You will have to have somebody mate them to your exhaust as the lengths are different than stock or shorties header manifolds. I am sure you can find a muffler shop that works for cash.
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Old Sep 30, 2004 | 03:59 AM
  #22  
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Hey Bam92, I'm not sure if that "email user" thing works so im gonna post this too. First of all, I don't think any shops will take my cash, they get fined $50,000 if they get caught. So I was wondering if you could help me out (or anyone else is welcome to chime in too). How hard was it to install the TPIS headers? Did you order them already coated? Do you need any tools besides the usual common ones? Can you bolt the entire thing on? How did you mate it up to the rest of your exhaust??? I'm seriously considering putting them in myself with my dad. If you or anyone could reply and let me know this info that would be great! Or if anyone has AIM or MSN messenger that could help me out with this that would be awesome.

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Old Sep 30, 2004 | 05:43 PM
  #23  
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Originally Posted by Renegade21
Hey Bam92, I'm not sure if that "email user" thing works so im gonna post this too. First of all, I don't think any shops will take my cash, they get fined $50,000 if they get caught. So I was wondering if you could help me out (or anyone else is welcome to chime in too). How hard was it to install the TPIS headers? Did you order them already coated? Do you need any tools besides the usual common ones? Can you bolt the entire thing on? How did you mate it up to the rest of your exhaust??? I'm seriously considering putting them in myself with my dad. If you or anyone could reply and let me know this info that would be great!
I don't know how your mechanical inclination is, or what you consider "usual common tools", but after watching the shop in San Jose install my LT headers, I would *NEVER* have been able to do it myself on 1-ft ramps. Some people can do header swaps in their driveways no problem, but they've got 1) ALL the necessary tools the know they'll need, and 2) probably many prior experiences in doing it on a lift, so they know what they are getting into.

I don't wanna be a "Chicken Little" ( ) and discourage you from this entirely, but I also don't want you to think this is as easy as an oil change or plugs/wires swap. Cat-back exhuast systems bolt on and off. Factory exhuast manifolds have to be extracted.
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Old Sep 30, 2004 | 08:38 PM
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Here in Miami the key words for a muffler shops to do such a job is, "I want these longtubes installed for offroad purposes as the car is only used for racing." Then most of them give you a nice wink start working.
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Old Sep 30, 2004 | 09:59 PM
  #25  
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Originally Posted by rjetrider
Here in Miami the key words for a muffler shops to do such a job is, "I want these longtubes installed for offroad purposes as the car is only used for racing." Then most of them give you a nice wink start working.
hmm... I will have to try that.

I don't think I'd be able to do the job of installing myself...so hopefully something like this works. but then they'll wonder why I want to keep my cats on
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Old Sep 30, 2004 | 10:51 PM
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Originally Posted by Renegade21
hmm... I will have to try that.

I don't think I'd be able to do the job of installing myself...so hopefully something like this works. but then they'll wonder why I want to keep my cats on
It shouldn't be illegal for a shop if you leave your cats on. When I inquired about having mine installed, I put it out up front that I was planning on running bullet cats with the headers, and the shop was like, "Sure. We can do that." It's the *cats* that can't be removed, or the shop can be subject to a big fine.
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Old Sep 30, 2004 | 11:09 PM
  #27  
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Originally Posted by Perfusion
It shouldn't be illegal for a shop if you leave your cats on. When I inquired about having mine installed, I put it out up front that I was planning on running bullet cats with the headers, and the shop was like, "Sure. We can do that." It's the *cats* that can't be removed, or the shop can be subject to a big fine.
hmm...From what I understood it was illegal for them to install the LT headers, because it would make them move the cats further back on the car. They have to be as close to the engine as possible. I think this is the thing that they were talking about when they said they can't do it legally or they get fined $50,000. Maybe I misunderstood somehow, maybe they misunderstood me, I don't know. But I remember them saying they couldn't get me "longtube headers" because they are "illegal". Think they will fall for the "it's for offroad purposes only" deal?
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Old Oct 1, 2004 | 02:05 AM
  #28  
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I emailed you back. Putting the LT's on your car is no big deal. If your mechanical that is. Getting the rest of the exhaust to match up to it is. Lt's are off a equal length where as a factory manifold or shortie headers are not. You will have to find somebody to customize the rest of the exhaust to match up. I don't believe LT's will pass the visual inspection even though with cats (stock or aftermarket) it meets smog tests. You will have to find somebody to overlook that.
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Old Oct 1, 2004 | 08:43 PM
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Originally Posted by james holley
I've spoken to died in the wool Corvette mechanics who say shortie headers are worthless. (by the way,don't tell anybody, but lots of us in Californis run long tubes and get away with it )
NO, they are not worthless. Now, let's talk about what you want your headers to do. If you want max horsepower, go with long tubes. However, if you want to keep your OEM exhaust (with cats), and want to reduce the heat under the hood, and you want a better looking header (than OEM), and a better sound, then you can look at Shorties. You sure see a lot of Hot Rods with shorties.
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Old Oct 1, 2004 | 09:58 PM
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Originally Posted by Strick
NO, they are not worthless. Now, let's talk about what you want your headers to do. If you want max horsepower, go with long tubes. However, if you want to keep your OEM exhaust (with cats), and want to reduce the heat under the hood, and you want a better looking header (than OEM), and a better sound, then you can look at Shorties. You sure see a lot of Hot Rods with shorties.
But what about power gain? I think he meant worthless in terms of horsepower gains compared to the gains found with LT headers, which is probably for the most part true. They don't have a significant power gain as the LT's do.
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