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What headers and cat should I choose?

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Old Jan 30, 2009 | 02:01 PM
  #1  
camaro87-alex's Avatar
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Joined: Mar 2007
Posts: 576
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From: Norway
Car: 1987 Chevrolet Camaro SC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.42
What headers and cat should I choose?

Hi there...

I am going to buy some new exhaust components to my 87 Camaro.
I am very soon finish with converting my car from Carbed 305 engine to a TPI engine.

I have a 3" catback system that I bought one year ago, and I love the sound of that. Now I want to change my Catalytic converter and go for some headers also. I think it is about time to change a stock cat that has 85,000miles on it.

What kind of headers should I go for?..And what kind of high flow cat?
I have seen that Magnaflow have a lot of aftermarket catalytic converters. Is that a good choise?..Or what about dynomax???

And when it comes to headers, I have heard about Hooker 2055HKR. Is that a good choise?..I have also been looking at Hedman Headers also. Is that a good choise?...It may be difficuly for you guys to answer this question but I appreciate every tips I can get...

My engine is like mentioned above a 305 TPI engine from 1987.
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Old Jan 30, 2009 | 04:04 PM
  #2  
five7kid's Avatar
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Joined: Mar 2000
Posts: 43,187
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Hooker 2055HKR headers, Catco 9118 direct-fit cat or something like it.

If your 3" exhaust fit your LG4 exhaust, it will have to be modified to fit the TPI cat. Not a biggie, just a detail.
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Old Jan 30, 2009 | 04:12 PM
  #3  
camaro87-alex's Avatar
Thread Starter
Senior Member
 
Joined: Mar 2007
Posts: 576
Likes: 0
From: Norway
Car: 1987 Chevrolet Camaro SC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.42
Re: What headers and cat should I choose?

Originally Posted by five7kid
Hooker 2055HKR headers, Catco 9118 direct-fit cat or something like it.

If your 3" exhaust fit your LG4 exhaust, it will have to be modified to fit the TPI cat. Not a biggie, just a detail.

I think the cats for the LG4 and TPI engines were the same this year but I am not 100% completely sure...What's the difference on the cats anyway?
They should be just direct fit procedures...
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Old Jan 30, 2009 | 11:41 PM
  #4  
five7kid's Avatar
Moderator
25 Year Member
iTrader: (14)
 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
TPI cat outlet was 2-3/4", LG4 cat outlet was 2-1/4".
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Old Jan 31, 2009 | 07:31 AM
  #5  
camaro87-alex's Avatar
Thread Starter
Senior Member
 
Joined: Mar 2007
Posts: 576
Likes: 0
From: Norway
Car: 1987 Chevrolet Camaro SC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.42
Re: What headers and cat should I choose?

Originally Posted by five7kid
TPI cat outlet was 2-3/4", LG4 cat outlet was 2-1/4".

Ok...Just a small difference then...But that wouldn't be any problem to fix...Then I think I now what to buy...
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