thinking of going in on the slp group purchase for headers but am unsure of a few things. First, do i go with slp or is edelbrock tes just as good? is it better to go with 1 3/4" or 1 5/8" primarys. i already have a flowmaster 2.5" catback exhaust. and finally, should the dual cats be replaced or are the stock ones sufficient? the car is a 91 Z28 with 350, chip, k+ns, and the flowmaster. any input would be greatly appreciated.
thanks
oh, and also would i still pass emissions if i gutted the stock cats? i live in california where the emissions is the worst.

[This message has been edited by FTC (edited December 12, 2000).]

 

I wish I had gone with the SLP 1 3/4" headers they are better for the 350, just because of the larger size. I don't know if the quality is any better than the TES though.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End

Current Mods: Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Performance Resource Chip with 160* Thermostat, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET : 14.32 @ 97.7mph
(corrected for elevation)

Soon to come: LT4 HOT Cam, Air Flow Research 190cc Heads, 2800 RPM Stall Converter and SLP 3.70 Rear End Gears.

 

you WONT pass emissions if you gut the cat. try shopping around for a hi flow cat. the stock one is NOT sufficient. id go with 1 3/4 headers and if you need to stay legal go with slp or else you could go with cheaper but good TES 1 5/8....slp i beleive is the only one to offer smog legal 1 3/4. good luck


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Rick
90 Camaro RS 305 TBI
400 small block, Hooker 1 5/8 shorties, Random Tech Cat, Hooker aero chamber cat back on the way!!
TH700-R4 with Trans-Go shift kit (corvette servo on the way)
MacEwen Motorsports White Gauge Overlays
14" K&N X-Stream Open Element
GTS Headlight and Taillight covers
5% Limo Tint all around
Classic White Chevy Bowtie sticker on rear window
http://www.geocities.com/esvalenz

Man if my camaro were a rice-rocket all those mods would give me what...easily 50-60 hp!!!

"Just because I've done it, doesn't mean I knew what I was doing!" - Me