Current mods include Stage 1 PCM, 3" O2 housing, 3" turboback see w/o cat, and fm wga spiking 17/18 and holding 14/15 to redline. I have the ngk 4306s and was curious as to what the gap should be.

With what you are running I would gap at 0.040, its what I have mine gapped to and Im at the same boost.

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mods: PT-P cai, CXRacing FMIC w/ pipes, AGP bones & w/g, magnecore wires and NGK iridium plugs, Turbo XS bov & mbc, maddog 58% STS, mopar s2 w/ toys, MPX 3 inch O2 housing, Maxxfab dp w/ hf cat, bwoody check valve, DCR misc. stuff

.040 sounds about right, but you could probably try it anywhere within a range of .032 to .050 and see what works best.

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- 2003 SRT-4, SILVER - 100K MILES!
- CURRENT MODS: MOPAR CAI, MOPAR CAT-BACK EXHAUST, MOPAR STS, MOPAR PERFORMANCE CLUTCH, NGK IRIDIUM IX PLUGS, GRANATELLI MS 0-OHM WIRES, CUSTOM STEREO
- MODS COMING SOON: MOPAR STAGE 1, AGP WASTEGATE, MPx THROTTLE B