Which subframe connectors to get w/dual cat exhaust
Thread Starter
Junior Member
Joined: Nov 2016
Posts: 2
Likes: 0
From: New Jersey
Car: 1989 Pontiac GTA
Engine: 5.7
Transmission: 700R-4
Axle/Gears: Borg Warner 9 Bolt 3.27
Which subframe connectors to get w/dual cat exhaust
Hello all! Back here again after 13 years of not having an F-Body. Just purchased another one....man it feels good again!! Glad to see my username was still available...lol. Anyhow...just got this 89 GTA with the dual cat setup and not sure which subframe connectors to get, so I don't have clearance issues with the exhaust. I had Global West on my 88 TA and loved them, but it was single exhaust. Any help would be appreciated. Want to purchase soon. Thanks.
Joined: Sep 2000
Posts: 2,504
Likes: 195
From: Moorpark, CA
Car: '91 GTA, '92 T/A Convertible
Engine: GTA: 350 w/Vortec heads, T/A: 305
Transmission: Pro-built 700R4
Axle/Gears: GTA: 3.27, T/A: 2.73
Re: Which subframe connectors to get w/dual cat exhaust
I have those same Global West connectors on my '91 GTA with the dual cats and they fit just fine.
Supreme Member




Joined: May 2001
Posts: 1,405
Likes: 117
From: Kars, Ontario, Canada
Car: '87 FIREGOOSE!!!!
Re: Which subframe connectors to get w/dual cat exhaust
Could give UMI a ring or email and ask if theirs fit. They are nice and solid.
... Just saw there is a set of Spohn in the for sale section..... not sure about cat applications....
... Just saw there is a set of Spohn in the for sale section..... not sure about cat applications....
Last edited by Buddy; Nov 7, 2016 at 02:20 PM.
Thread Starter
Junior Member
Joined: Nov 2016
Posts: 2
Likes: 0
From: New Jersey
Car: 1989 Pontiac GTA
Engine: 5.7
Transmission: 700R-4
Axle/Gears: Borg Warner 9 Bolt 3.27
Re: Which subframe connectors to get w/dual cat exhaust
Thanks for the replies back so fast. Guess I have a decision to make.
Joined: Dec 1999
Posts: 5,964
Likes: 37
From: Hacienda Heights, CA
Car: 90 RS 'Vert, 88 IROC-Z, 88 Firebird
Engine: 305 ci tbi, 305 ci tpi, 350 ci tpi
Transmission: WC-T5, WC-T5, 700R4
Axle/Gears: 3.45, 3.27, 3.27
Re: Which subframe connectors to get w/dual cat exhaust
Alston brand also fit both single and dual cat exhaust.
http://www.top-downsolutions.com/cha...d-(aka-f-body)
Lon
http://www.top-downsolutions.com/cha...d-(aka-f-body)
Lon
Joined: Oct 2011
Posts: 475
Likes: 8
From: Houston, TX
Car: 1989 GTA, 2004 Z06, 2008 Expedition
Engine: L98, LS3, 5.4L
Transmission: 700R4, MN6, Auto
Axle/Gears: 3.23, 3.42, ?
Re: Which subframe connectors to get w/dual cat exhaust
With the UMI kit, the short angled brace will not work with the dual cat setup(at least on my own vehicle it contacted the pipe and had interference but I am also running the SLP headers and Y-pipe also. Other that that short angled bracket, they fit nicely.





