I ordered some SLP headers for my 91T/A 305 TPI. My question is will I have to order a special cat to go with the SLP Y-pipe and the 3inch flowmaster catback exhaust or will a regular catco cat 3inch in/out work for me?. will the SLP y-pipe have the right size end to fit the cat correctly and if so will the other end of the catco cat fit in the 3inch flowmaster catback exhaust

 

you might have to order a adapter for the y-pipe, slp would know for sure ask them. and the cat should fit the catback if they are both 3 in

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- David
88' GTA 5.7L TPI MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass, Gutted CAT, Flowmaster 80 Series Muffler added to Unkown CatBack, Ported Intake

http://www.geocities.com/david_angel_16

 

When I installed my SLP header, I also ordered their 3" Slip Fit Catalyst Adapter p/n 30038 @$29.95. This went together with the 3" in/out CATCO conv. Worked great. Check it out with SLP.

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1987 Black Camaro IROC-Z (original owner) Replaced LB9 @ 86100 miles.
New 350 Crate engine
Balanced & blueprinted
World Prod SR 67cc Heads 9.6:1 C.R.
Cam: 454lift,216dur@50,110ls
TPI Induction(from 305)
22# Fuel Injectors
AFPR & Gauge
SLP Intake runners
Fastchip stage 2 chip
K&N filters & Air Foil
Hothkis STB
SLP 1 3/4 Headers
CATCO 3" Catalytic conv.
SLP 3" Cat Back Exhaust
700R4 Auto
SLP Torque Converter (2400 stall)
1LE Aluminum Dr Shaft
B-W 9 bolt rear 2:77 Possi. Four wheel disc brakes,245/45/ZR-17 Tires
17x8.5 ATI 5 Razze Wheels
Dyno results: 211 RWHP & 282 RWTQ.
271 HP & 362#/ft at flywheel with all Emission controls installed. New Toy!

 

is this the right catco cat for my 91 t/a 305 TPI
CTO-9118

Chevrolet/Pontiac: 3 in. slip fit inlet and 3 in. MALE BLL outlet with flange, direct fit, stainless steel, catalytic converter

$116.39 (SUMMIT)

 

91TA
The P/N CTO-9118 is the Cat I used for my SLP exhaust, so it should work with the Flowmaster. Summit is where I got mine also.