[MI] subframe connecters
Thread Starter
Member
iTrader: (10)
Joined: Mar 2007
Posts: 126
Likes: 0
From: Dearborn Hgths Mich
Car: 87 Iroc Z 28
Engine: 355/ 600 Holly
Transmission: 700R4 shift kit & vette servo
Axle/Gears: 9 bolt 3;70s
subframe connecters
I have a set of Competition Engineering model # C3111 bolt on subframe connecters for sale, they are 2 yrs old, out of the box but never installed on a car. They are black powder coated with no rust any where. I do not have the
mounting hardware. They can also be welded. Summit list them for $348.99. I want $225.00 . I also have a front bumper assembly in real good condition, there are no cuts,cracks, dents
or other damage. It is painted black. $100. I do not want to ship either item.
mounting hardware. They can also be welded. Summit list them for $348.99. I want $225.00 . I also have a front bumper assembly in real good condition, there are no cuts,cracks, dents
or other damage. It is painted black. $100. I do not want to ship either item.
Last edited by rkg8554; Nov 7, 2019 at 10:01 AM.
Joined: Aug 2009
Posts: 2,098
Likes: 8
From: Clinton Township, Michigan
Car: 91 GTA, 73 Z28
Engine: 355, 6.0L
Transmission: TH350, 4L80E
Axle/Gears: 3.42, 3.73
Re: subframe connecters
Do you have a link? i think your missing some of the part number but most the 82-92 Fbody stuff i can find from Comp Engineering is only in the 150 range. Commenting as an inaterested buyer from MI
Senior Member
Joined: Feb 2019
Posts: 786
Likes: 197
From: SW Missouri
Car: 1989 Trans Am
Engine: sp357
Transmission: TKX
Re: subframe connecters
I think the OP has the C3111 subframe connectors.
https://www.jegs.com/i/Competition+E...SABEgJ5ZvD_BwE
https://www.jegs.com/i/Competition+E...SABEgJ5ZvD_BwE
Thread Starter
Member
iTrader: (10)
Joined: Mar 2007
Posts: 126
Likes: 0
From: Dearborn Hgths Mich
Car: 87 Iroc Z 28
Engine: 355/ 600 Holly
Transmission: 700R4 shift kit & vette servo
Axle/Gears: 9 bolt 3;70s
Re: subframe connecters
Yes you are correct, the # is C3111, Sorry about that. I can text pics if I get a #.
Trending Topics
Member
iTrader: (2)
Joined: Apr 2016
Posts: 458
Likes: 171
From: East Moline, IL
Car: 88 T/A, 91 Formula, 94 Firehawk
Engine: 400 Pontiac, 5.0 TPI, 5.7 LT1
Transmission: 700R4, T5, T56
Axle/Gears: 4.10, 3.42, 3.42
Re: subframe connecters
I have a set of these as well new and uninstalled as of yet but I will say these things look to be of great quality and really tie the frame together well. That’s a pretty good price too.
Thread Starter
Member
iTrader: (10)
Joined: Mar 2007
Posts: 126
Likes: 0
From: Dearborn Hgths Mich
Car: 87 Iroc Z 28
Engine: 355/ 600 Holly
Transmission: 700R4 shift kit & vette servo
Axle/Gears: 9 bolt 3;70s
Re: subframe connecters
Yes they are still available. I can text pictures if I get a number.
Thread Starter
Member
iTrader: (10)
Joined: Mar 2007
Posts: 126
Likes: 0
From: Dearborn Hgths Mich
Car: 87 Iroc Z 28
Engine: 355/ 600 Holly
Transmission: 700R4 shift kit & vette servo
Axle/Gears: 9 bolt 3;70s
Re: subframe connecters
I found the mounting hardware for them, you can't beat these for $225.00 for the set. Just missing the instructions and original box. These can also be welded on.
Thread Starter
Member
iTrader: (10)
Joined: Mar 2007
Posts: 126
Likes: 0
From: Dearborn Hgths Mich
Car: 87 Iroc Z 28
Engine: 355/ 600 Holly
Transmission: 700R4 shift kit & vette servo
Axle/Gears: 9 bolt 3;70s
Re: subframe connecters
Dearborn Heights, Just west of Detroit.
Joined: Sep 2002
Posts: 1,099
Likes: 21
From: Melbourne Australia but from South Carolina
Car: 1991 Trans Am convertible
Engine: 305 TPI
Transmission: Auto
Re: subframe connecters
Those are really good sfcs. I think they are probably the best of all sfcs. I installed them of my car and to decrease the part under the passenger footwell that hangs a little low for my liking, I cut the 2inch bar that goes accross from the sill to the middle with 1/4 inch flat plate. That lifted it a bit higher and caused less to hang down and thus less to scrap on surfaces like speed bumps . Very good sfcs and very strong.
Joined: Sep 2002
Posts: 1,099
Likes: 21
From: Melbourne Australia but from South Carolina
Car: 1991 Trans Am convertible
Engine: 305 TPI
Transmission: Auto
Re: subframe connecters
My car was an 84 Camaro with stock exhaust. I would think the problem on a later car would be the dual cats. I helped a friend install a set of the ones like mine (changed from 2inch to plate) on an 88 Camaro. and his installed ok. I think they maybe are talking about the part that we are speaking of that hangs a little low if placed under the cats. Please dont make a decision on what I have done. I do think that Competition Engineering have changed their design to tublier type and would not be the same as the ones you are looking at.
Thread Starter
Member
iTrader: (10)
Joined: Mar 2007
Posts: 126
Likes: 0
From: Dearborn Hgths Mich
Car: 87 Iroc Z 28
Engine: 355/ 600 Holly
Transmission: 700R4 shift kit & vette servo
Axle/Gears: 9 bolt 3;70s
Re: subframe connecters
The problem is where the subframe connecter crosses from the passenger side rocker to the front subframe next to the transmission. The cat and exhaust pipe will end up about 6" lower
then the original location. I was going to shorty headers and true dual exhaust with out the cats with these connecters. But I sold the car before I installed them.
then the original location. I was going to shorty headers and true dual exhaust with out the cats with these connecters. But I sold the car before I installed them.
Joined: Sep 2002
Posts: 1,099
Likes: 21
From: Melbourne Australia but from South Carolina
Car: 1991 Trans Am convertible
Engine: 305 TPI
Transmission: Auto
Re: subframe connecters
The problem is where the subframe connecter crosses from the passenger side rocker to the front subframe next to the transmission. The cat and exhaust pipe will end up about 6" lower
then the original location. I was going to shorty headers and true dual exhaust with out the cats with these connecters. But I sold the car before I installed them.
then the original location. I was going to shorty headers and true dual exhaust with out the cats with these connecters. But I sold the car before I installed them.
Thread
Thread Starter
Forum
Replies
Last Post
iggy89
Engine/Drivetrain/Suspension Parts for Sale
5
Jan 28, 2016 03:20 PM
83ScramAm
Engine/Drivetrain/Suspension Parts for Sale
7
Sep 22, 2013 09:39 PM
Whoboy580
Engine/Drivetrain/Suspension Parts for Sale
3
Jun 24, 2011 06:30 PM
XSVortex
Southern California Area
3
Nov 28, 2007 08:57 PM
islandRC
Engine/Drivetrain/Suspension Parts for Sale
4
Oct 14, 2006 08:00 AM









