UMI SFC and SLP exhaust issues?
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From: London ON Canada
Car: 87 IROC
UMI SFC and SLP exhaust issues?
Anyone running the UMI SFC's and SLP headers/y-pipe and run into clearance issues with the passenger side SFC? The shop I had install the SFC said the cross over bar that comes for the passenger SFC wouldn't clear the y-pipe. They were able to get it in, but now I'm getting what sounds like contact between the two when the car runs.
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Joined: Jul 1999
Posts: 2,757
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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: UMI SFC and SLP exhaust issues?
That is normal for perimeter positioned subframes. You must cut the y-pipe and re-weld so it clears on the inside...
Joined: Oct 2011
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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: UMI SFC and SLP exhaust issues?
I had the same issue and contacted UMI. I was told that most people do not even weld in that small piece on the passenger side because of contact when using with headers and aftermarket y-pipes. Your choice is to either leave it off or re-cut the y-pipe. I just left it off and haven't had any problems.
Joined: May 2010
Posts: 542
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From: Texas
Car: 85 Camaro
Engine: 454 RamJet
Transmission: LT1/T56
Axle/Gears: 8.8w/4.10
Re: UMI SFC and SLP exhaust issues?
I am not running the SLP but have Hooker. The UMI instuctions stated to weld that piece in after the exhaust was installed so it could be positioned to clear. I have mine welded on my car and it clears ok but figured if I ever change exhaust that I would have to cut it back off and reposition it
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Joined: Jan 2001
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From: St Catharines, ON
Car: '85 Z28
Engine: 350
Transmission: T5
Axle/Gears: 3.23
Re: UMI SFC and SLP exhaust issues?
Where did you get them installed Kevin? A have a set of UMIs in the garage waiting to go in.
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Senior Member
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Joined: Jul 1999
Posts: 632
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From: London ON Canada
Car: 87 IROC
Re: UMI SFC and SLP exhaust issues?
Thanks for the replies. I had the shop that did the work leave the cross piece out as there was no way it would have cleared the y-pipe. Car is really tight now
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Re: UMI SFC and SLP exhaust issues?
Awesome. Glad it worked out well for you.
We have the same SFC's on our '89 as well. There is a storm drain at the front of our factory. When we pull in at an angle, the left front tire pulls of the ground...
Have a great weekend corner carving.
ramey
We have the same SFC's on our '89 as well. There is a storm drain at the front of our factory. When we pull in at an angle, the left front tire pulls of the ground...
Have a great weekend corner carving.
ramey
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