[1320racer]

After arriving, Frank Smith asked me a few questions. With a very polite tone and smile, Frank stated the vehicle needs plugs that are two steps cooler. After looking at their website for a Stage 2 install more closely, this was an oversight by me and my fault. He recommends NGK 97506 plugs gapped to 0.022” every 10k miles.

I plan to purchase plugs from NAPA $19 or order from FCP EURO $13 https://www.fcpeuro.com.
Edit: NAPA gave a nice discount and I will pick them up later today for <$120

He said he’d help me change the plugs this Saturday, after the engine cooled for 3-4 hrs. Then, if the dyno was available, we’d do baseline pulls, tune it, and then do a few more pulls to verify all was running as it should at Stage 2.

I asked him the typical HP and TRQ numbers to expect and my guesses will likely be wrong. He said he has Stage 2 cars 750+ HP at the wheels, but only if they have supporting mods...(Clutches, Catless Downpipes, Transmission Coolers, Differential Upgrades, Half Shafts etc). To keep my vehicle from tearing itself apart, he expects to de-tune my M5 with numbers at or below 610-620 HP at the wheels. He said it will simply depend how my vehicle “accepts” the power.

BTW, his shop was immaculate with 1 F10 M5 besides mine, 1 M4, 3 M3s and 1 Porsche.