Suspension and Chassis Questions about your suspension? Need chassis advice?

Spohn SFC's

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Old Apr 11, 2003 | 11:41 PM
  #1  
jfreeman74's Avatar
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
Spohn SFC's

Will the Spohn SFC's work with 3" y-pipe? Are there any clearance issues?
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Old Apr 12, 2003 | 12:07 AM
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Yes, I have a 3" collector and my Spohn's fit just fine. It was the old boxed Spohn SFC's that were a problem and why you had to get special ones for the SLP exhaust...
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Old Apr 12, 2003 | 12:48 AM
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From: Daytona Beach, FL
Car: Camaro RS
Engine: L03 305
Transmission: 700R4 Auto
Not on my car! I have the old boxed SFCs and there is about maybe 1/16" clearance between the y-pipe and the SFC. The cat is another issue, if you've got a 3" cat then it will hit the crossmember. Now that's the old boxed ones, there are tubular ones now that are supposed to be better for clearance like that but I wouldn't know, I wish I could have mine taken off actually. I didn't notice any handling difference when they were installed, if the chassis was any more rigid the difference was not apparant. But alas I cannot, for they are welded on and a part of the car forever.
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Old Apr 12, 2003 | 06:36 AM
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
Only install problem with new tube type Spohn SFC was I had to drop the SLP exhaust and remove the Catco cat heat shield. But this was mentioned in the instructions.
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Old Apr 12, 2003 | 11:29 AM
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Really? I didn't have to move mine at all I'm running the 3" catco too. Maybe mine isa little different because it's the SLP Tri-Y headers so maybe the y-pipe ad collector are in a slightly different place...
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Old Apr 12, 2003 | 12:47 PM
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Car: 1987 Black IROC-Z (SOLD)
My set up is SLP 1 3/4 headers, SLP slip fit conecter, 3" in/out Catco Cat and SLP 3" Catback Exhaust. Well mayby each car is different, no big deal the SFC's are installed. Just so other people know what to expect.
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Old Apr 12, 2003 | 07:49 PM
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I've got the 1 5/8 Tri-Y's, 3" Catco slip fit, and the 3" SLP Cat back. Maybe since yours is the 1 3/4 tubing your collector is just a little but more over to the side than mine. Oh well, like you said, each car is different...
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Old Apr 14, 2003 | 10:34 PM
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From: Nebraska
Car: 1991 Camaro z28
Engine: 350 Tpi
Transmission: 700r4 Auto
How much did u guys pay to have yours welded on? the shops around here want to charge me around $265....is that bull or a fair price?
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Old Apr 14, 2003 | 10:37 PM
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Complete , Bigtime!

It cost me only $100 and it took exactly 1 hour with me guiding the guy through it and colling the welds down with the hose after each one was completed. That 1 hours included removing and re-installing the rubber deflectors that run along the bottom of the gfx, they perfectly hide the SFC's
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Old Apr 14, 2003 | 10:38 PM
  #10  
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From: Warner Robins, Ga
Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: 700R4
Originally posted by Black91Z28
How much did u guys pay to have yours welded on? the shops around here want to charge me around $265....is that bull or a fair price?
I was charged $100 , original price was 80, but he decided the spohns were a little harder than normal so it was $100.

Overall not bad.
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Old Apr 15, 2003 | 07:51 AM
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From: Flowery Branch, GA
Car: 1985 Iroc-Z
Engine: 1 BA 305 TPI
Transmission: Probuilt 700R4 - 2800 Stall Midwest
Axle/Gears: 3.42
The best price I have gotten from a shop is ~$150. They said they would have to look at the car though. Some other places have said it would be ~$200-250. More I'm not sure SFC's are really worth it if the install is that much.
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Old Apr 15, 2003 | 08:57 AM
  #12  
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From: Maryland; USA
80 bucks around here.

havet tried any other places.
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