well im gettin the catless ypipe for christmas.. i talked my Girlfreind into gettin it for me .... waht do i need to do tuning wise and also im prob gonna wanna get new o2 sensors right? do i need front and rear or just rear..anyone know?
well im gettin the catless ypipe for christmas.. i talked my Girlfreind into gettin it for me .... waht do i need to do tuning wise and also im prob gonna wanna get new o2 sensors right? do i need front and rear or just rear..anyone know?
1999 GMC Sierra black reg cab short bed SLE Z71 5.3 <--CARDOMAIN PICS
NELSON 93 hot tune, 02 PCM, VOLANT Ram air intake, MSD wires, ACdelco iridium plugs , Edelbrock ceramic shorty headers, jegs off-road y pipe, Dynamax int pipe, 3" Magnaflow Exhaust with turndown, EGR removal, throttle body bypass, vette servo, long servo pin, performance 4th apply piston, B&M shift kit, SLP 160* thermostat, LS1 Fans, NELSON harness, ported and polished throttle body (did it myself, for free lol)..... _______? cam is next as soon as i stop spending all my money
Just frount O2s. The rear O2s can be deleted out.
I think the rears ( after cat.) are just to make shure the cats are working right.
SOON TO COME!!!!
The front o2s are used for tuning and what your engine uses to adjust the fueling tables rears just basically say "the cats are still here" just get some o2 bung plugs and plug the rears and turn the o2 code off with the tune. I am going with the same setup on my 418 should work out pretty nice for you.
2007 CCSB Z71 VortecMax: Stock!
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