I know it wasn't produced. But lets say someone was dumb enough to put a 350 into a car with the stock single cat exhaust. Would the car even run or what just curious? Shouldn't be to hard for you guys. I have seen you answer some tough stuff before so this should be cake.

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91 z-28 305 700R4
3.73 gears out back
T-Tops and Black all over.

 

I have an 89 iroc with a single cat exhaust. It came from the factory with a 350. Dual cats were an option.

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1989 IROC-Z Original 350 was swapped for a 305! Now I have a take-out 350 4-bolt main Vortec truck motor, ready to set things right

 

I have a Formula 350 with Single Cat

 

my bad I thought all G92 cars had dual cats and all 350's had to have one of the G92's. Cool just curious.

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91 z-28 305 700R4
3.73 gears out back
T-Tops and Black all over.

 

I don't have a G92 option, wish I did though. I think the FAQ breaks it down about which year got what, and what G92 included that year.

 

I think 88 is the last single cat year and 89-92 had the opt. of dual

 

My 92 has a single cat, and I put a 350 in it and it runs great. Especially after I transformed the exhaust into straight pipe. Yes the single cat is stock.

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1992 Camaro Z-28 custom 25th anniversary, 5.7 TPI auto, 2.73 posi, t-tops, arctic white with 92' medium mettalic gray stripes with black border stripe.

1967 Pontiac Catalina 2 door fastback, 400 v-8, auto, cameo white, dark red interior

 

It would run fine as you can see by the replies of these people with single cats. However, it is not optimum and will take away 5hp or so... not a big deal, especially considering a set of headersa, a replacement high flow cat, and a catback will solve that problem in a hurry!

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1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)

Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's, Accell 24# injectors

1989 Chevrolet Celebrity Eurosport <--DEAD AS OF 9/20/01
2.8 MPFI, no mods
225,000 miles and still ticking!

More info and pics on my webpage:http://go.to/iroc-z

AOL IMer: GPA 0point0

 

Yep my GTA is a L98 with a single cat...one of the few options it didn't come with..

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Check out MyGTA Nicknamed:The Big Red Machine
***AOL IM ClarkeMustGoNow***
Moderator at www.transamgta.com
"What does not kill us only makes us stronger"

Tony

 

My 88 IROC came with a 350 and G92 option. It only had one cat stock. I think the thing runs great.

Matt

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irocet@hotmail.com

drive.to/Stang_Kilr

88 IROC-Z -- 350 L-98, 700R4, Flowmaster, Edelbrock Headers, Catco Cat, K&N, MAF Sceens Removed, Airfoil, March Pullies, Comp Cams Magnum 1.6 Roller Rockers, Bosch Platinum Plugs, Accel 8.8 mm Wires, MSD 6AL, Hypertech Cap & Coil, Hypertech Chip, Hotchkis Strut Tower Brace

 

87-88 L98's would all have single-cats, because dual-cats werent available. 89 L98 would have single-cat standard, and G92 and dual-cats being an option. 90-92 L98's all have G92 and dual-cats standard.


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1991 Camaro Z28
5.7L 5-Speed (originally 305)
317 RWHP, 418 RWTQ
13.23 @ 107.62 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Member: SoCal F-Bodies
-=ICON Motorsports=-

 

In addition, my 86' has the G92 option as well. But, as others have noted - dual cats were not available until 89'. If my memory serves me right, G92 just refers to a performance axle ratio.

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1986 IROC, fully loaded, Mini Ram'd 383, Art Carr 700R4, Accel DFI, 12 bolt rear, etc, etc......