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still no luck. i replaced my upstream O2 with Bosch pt no 13399... no CEL, but car is still running like crap... no torque, stuttering, backfires, and no power < 3k RPMs... this blows. i'm going to mess with plug wires, coil pak next.
so far i've done O2, fuel filter, plugs.
1999 GS: Custom CAI w/ extra large filter, Front strut tower brace, Rear sway bar, Brembo xDrilled & slotted rotors, Performance Friction pads, Greddy 4:1 header, Greddy SP cat back exhaust, Bridgestone Potenza RE950’s, VIS carbon fiber Hood & pins, Optima Red Top battery, Custom taillights and rear end mod
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