I know that the G92 cars got more power from the dual cats over the single cat cars. But I was wondering is there any gain haveing the cats removed over the single system with the cat removed.
just wondering?

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Ya sure it is just an RS

B4Cyaa

1991 RS B4C
Former Nebraska Highway Patrol Car
305 TPI
WC T-5
Four Wheel Disk Brakes
Only Options
Rear Defrost
Am-Fm Radio
Red-int White-exe
One BA Of A 350 In The Works
Mods
Dynomax Cat Back (to hold me over till I got the $$$ for the Borla)
best 1/4mile Run of 14.92@94.83
with 145,000 on her

https://www.thirdgen.org/rides/index.tgo?action=view&rideid=2201
god speed dale

 

yeah me too


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1989 Iroc-Z. 305TPI 5spd, G92 (230hp/300ft/lbs). 91-92Z28 groundeffects. Corvette Admiral Blue Metallic paint. Thermomaster chip, 160*stat & fan switch, Bosch +4 plugs, MAF screens removed, custom ram air, Flowmaster cat back, K&N, adj. fuel pres. reg.
72,000 miles. SWEET!!

 

In carcraft, it said they gained about 4-5 hp eliminating both cats and replacing it with a 3" pipe but lost heavily on torque at about 9-11 lbs/ft. I'm not sure if I'll do this because with our displacement we need all the torque we can get.

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1990 G92 5spd LB9 - 3.42

Accel Ignition/Wires (8.8mm), Advanced Timing, Homemade Ram Air, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters
14.4 @ 94mph w/2.0622 60ft

 

I did not take off my cat but what I did was:
1. Unbolted the cat on the rear side of the car
2. Then I took a long rod and broke up the cerramic inside of the cat
3. Next I fired up the motor and blew out all of the CRAP!
4. Then rebolted the cat to the exaust.
5. I dont have any numbers but form about 35-55 mph there is a huge torque increase, and there is noticable difference throughout the rpm range
And it passed e-checl