UMI SFC Visibility
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Joined: Jul 2015
Posts: 127
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From: Central Illinois
Car: 1985 Camaro
Engine: 5.3
Transmission: 4L80e
Axle/Gears: 3.42 10 bolt
UMI SFC Visibility
Are the UMI SFC visible from the side? I heard you can pinch weld them pretty much the entire length so that would seem to indicate they tuck up nicely, but I also heard that they are very similar to UMR and those have some gap. Spohn tubular hide the best IIRC but I don't want to weld round tubing. If you have a pic, please post it.
Joined: Jul 2011
Posts: 744
Likes: 5
From: Davison, MI
Car: 89 Camaro
Engine: Dart SHP 400-Holley Terminator EFI
Transmission: Tremec T56 Magnum F
Axle/Gears: Strange S60 3.55:1
Joined: Jun 2006
Posts: 2,444
Likes: 75
From: Plant City, FL
Car: 1991 Firebird
Engine: 3.1L V6
Re: UMI SFC Visibility
I went with a set of UMI because they looked like good pieces and also didn't show when looking at it from the side of the car.
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Joined: Jul 2015
Posts: 127
Likes: 0
From: Central Illinois
Car: 1985 Camaro
Engine: 5.3
Transmission: 4L80e
Axle/Gears: 3.42 10 bolt
Re: UMI SFC Visibility
BottledZ28, I emailed UMI a couple weeks ago and they said the next sale was going to be black Friday. Last year they had a 10% off and free shipping for Thanksgiving.
Here's some prices:
Summit- $247.99 (but will beat a price by $1 lol)
Jegs- $239.99
LMPerformance- $229.00 (took $10 off to beat Jegs
)
UMI- $283.40 (includes shipping to Central Illinois, $43.41)
UMI w/ 10% off and free ship- $215.99
All prices includ shipping.
I didn't contact Jegs but they price match as well and had a sale in January for $177.09 shipped which is definitely worth looking into. UMI also has them on eBay but its almost $300. In case anyone was wondering, UMI replied in under 4 hr, LMPerformance in 9.5 hr and Summit in like 2.5 days.
Here's some prices:
Summit- $247.99 (but will beat a price by $1 lol)
Jegs- $239.99
LMPerformance- $229.00 (took $10 off to beat Jegs
UMI- $283.40 (includes shipping to Central Illinois, $43.41)
UMI w/ 10% off and free ship- $215.99
All prices includ shipping.
I didn't contact Jegs but they price match as well and had a sale in January for $177.09 shipped which is definitely worth looking into. UMI also has them on eBay but its almost $300. In case anyone was wondering, UMI replied in under 4 hr, LMPerformance in 9.5 hr and Summit in like 2.5 days.
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Joined: Apr 2008
Posts: 322
Likes: 1
From: Mechanicsville VA
Car: 1991 Z-28
Engine: 383 TPI
Transmission: 700R4
Axle/Gears: 2.73
Re: UMI SFC Visibility
I have UMI sfc's. I cannot imagine there are any better fitting more tightly tucked up connectors anywhere out there. They fit perfect. Very happy with them.
Re: UMI SFC Visibility
Safety issue. The block will not withstand forward and backward movement as positioned in the photo. Also, if one block fails the rest will likely follow as the car drops and shifts.
Can be demonstrated by taking a single block and dropping it on a corner.
Can be demonstrated by taking a single block and dropping it on a corner.
Last edited by Saxondale; Sep 21, 2017 at 06:24 AM.
Joined: Jun 2003
Posts: 5,028
Likes: 78
From: Desert
Car: 1991 Z28 Vert
Engine: 383 single plane efi
Transmission: T-56
Axle/Gears: 8.8 with 3.73s
Re: UMI SFC Visibility
My only suggestion to UMI is to offer a version of these that is for guys that run an exhaust down the transmission tunnel, ie long tubes. It would just be a mirror of the drivers side connector. I question the effectiveness of that dinky little connector that is to be used in conjunction with the stock exhaust.
Joined: Feb 2001
Posts: 8,494
Likes: 411
From: Sophia, NC
Car: 2016 Camaro SS + 1986 Z28
Re: UMI SFC Visibility
I question the effectiveness of that dinky little connector that is to be used in conjunction with the stock exhaust.

Joined: Sep 2005
Posts: 1,915
Likes: 322
From: NJ
Car: 1987 IROC-Z
Engine: 406 on N20 w/ EFI
Transmission: P.B. 700R4
Axle/Gears: 12 bolt w/ 3.91
Re: UMI SFC Visibility
abubaca... your exhaust setup looks just like mine. I havd the dyno-dons hearders, to his ypipe, then a welded on magnaflow spun cat, to the : echaust with my electric cutout mounted in just the same spot. however, I do not have a turndown like you do on the end of it. I have wanted to, but never did. not sure if you ran the car around without it and then with it and noticed a difference of noise/tone/sound wave reverberating etc?? I should get one, a nice polished or stainless one like you have. what brand is that?
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