I was wondering this, because i am sick of smelling that awful exhuast smell. I was just wondering if by putting a cat back on, will i lose power and will my exhaust be quieter?

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Steve
88 Firebird TBI(WS6),TH700R4 - Open Element, Cat Delete, K&N filter 14*4 element, American Thunder Flowmaster Catback Exhaust, 180 Stant thermostat, Accel cap and rotor

 

I bought the Catco high-flow 3" universal cat from Summit for 50 bucks. It's a fairly cheap investment and it's worth it. You don't want to be caught by the cops without a cat. Big fines. I have heard that high-flow cats flow just a little bit less that a straight pipe, but I have no data to back this up. You really don't have much to lose at all by putting a cat on, as long as you don't use a stock one. Just my 2 cents worth.

 

It may just give you back a bit of low-end torque...and will make your exhaust deeper Go for it, man.

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'89 RS LO3- 140,000 miles
14x3 K&N Open Element
Ram stock replacement clutch
Edelbrock TES (Jet-hot coated)
Catco cat
Edelbrock 3" Cat-back
KYB GR-2 Struts and Shocks
Pioneer DEH-P77
Midland 77-115 with 3' Firestik and 100 watt police PA
Dual .50 caliber machine guns just under ground effects

Coming:
Edelbrock Strut Tower Brace
Spohn subframe connectors

When your buddy reaches for a 10-pound sledge and says "I think we're gonna have to modify the floor pan, okay?" the answer is NO.