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Exhaust and subframe connectors

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Old Mar 10, 2015 | 06:58 AM
  #1  
Firebird sweden's Avatar
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From: sweden
Car: Firebid Cab-92/1989 TTA
Engine: 383 HSR TPI
Transmission: TH700r4
Axle/Gears: 4.10
Exhaust and subframe connectors

Hi
How are you doing to make room for the exhaust when you have subframe connectors Installed?
Have a 1989 TTA
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Old Mar 10, 2015 | 07:10 AM
  #2  
midias's Avatar
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From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Exhaust and subframe connectors

I have the UMI subframe connectors
http://umiperformance.com/catalog/in...roducts_id=127

No problems with the catback. The Y pipe was fine when I use 2." inch piping but when I went to 3" I had to cut and angle it a bit down by the brace to get it to fit.
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Old Mar 10, 2015 | 09:26 AM
  #3  
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From: Ahead of you...
Car: 1984 LG4 Camaro
Engine: 350 Roller Motor
Transmission: Level 10 700R4
Axle/Gears: Strange 12 bolt 3.42
Re: Exhaust and subframe connectors

The Spohn connectors give factory-like clearance to the y-pipe, which is where 90% of the problem is with subframes.
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Old Mar 10, 2015 | 10:45 AM
  #4  
Ozz1967's Avatar
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From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Exhaust and subframe connectors

Originally Posted by paul_huryk
The Spohn connectors give factory-like clearance to the y-pipe, which is where 90% of the problem is with subframes.



I run Spohn subframe connectors with 3" factory style exhaust, Hooker 2055 headers and y-pipe. Everything fits perfectly.
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Old Mar 10, 2015 | 12:53 PM
  #5  
Firebird sweden's Avatar
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From: sweden
Car: Firebid Cab-92/1989 TTA
Engine: 383 HSR TPI
Transmission: TH700r4
Axle/Gears: 4.10
Re: Exhaust and subframe connectors

Ok
I have the Competition Engineering#247-3111
Subframe Connectors
1982-92
And its written that they dont fit facory exhaust😫
Think i just have to start to cut into the subframe
Didn t notice that when i bougth them.
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Old Mar 10, 2015 | 01:11 PM
  #6  
Ozz1967's Avatar
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From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Exhaust and subframe connectors

Originally Posted by Firebird sweden
Ok
I have the Competition Engineering#247-3111
Subframe Connectors
1982-92
And its written that they dont fit facory exhaust😫
Think i just have to start to cut into the subframe
Didn t notice that when i bougth them.
Honestly, I would sell those and buy Spohn or UMI or BMR subframe connectors. All of which fit stock exhaust and no cutting the subframe is required.
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Old Mar 10, 2015 | 02:54 PM
  #7  
Firebird sweden's Avatar
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From: sweden
Car: Firebid Cab-92/1989 TTA
Engine: 383 HSR TPI
Transmission: TH700r4
Axle/Gears: 4.10
Re: Exhaust and subframe connectors

Well thats not going to happend,i dont think you cant buy those in sweden and shipping is very expensive.
I going to modify the one i have on the car and hope they still do some good,car make close to 600fwhp so think i need them
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Old Mar 10, 2015 | 03:08 PM
  #8  
Ozz1967's Avatar
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From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Exhaust and subframe connectors

I undererstand. I just would hesitate before cutting ANY of the subframe on your car. Congrats on 600whp though, that's impressive! And yes, that does demand you install some kind of sub frame connectors.
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Old Mar 10, 2015 | 03:20 PM
  #9  
Firebird sweden's Avatar
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From: sweden
Car: Firebid Cab-92/1989 TTA
Engine: 383 HSR TPI
Transmission: TH700r4
Axle/Gears: 4.10
Re: Exhaust and subframe connectors

I vill not cut on subframe just going to flat out a pice of 4 inch on the connectors,they are already bolted to the car and fits fine exept for exhaust clerence
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