to the op, why are you running colder heat range plugs? i could be wrong but im believe there is no need with your set up
06ccsb, cammed, stalled, geared
If i can beat a mazda rx-8 with my truck, i think you should be able to handle a mazda 3 with little to no problems.![]()
02' silverado ext. cb 2wd , 5.3 liter 325c.i. LM7, ported and polished throttlebody with bypass, Jannetty Racing 87 octane dyno tune, cold air intake with custom ram air, Heavy duty built 4l60e with vette servo, Z-pac clutches, "The Beast" Sunshell, transgo shift kit, yukon 4.10 gears with true trac, custom exhaust with Moroso Spiralflow, no cats, MSD 8.5 race wires, NGK TR55's