I recently purchased a Mycal tuner and 170 degree thermostat from LMS. Anthony went out of his way to hook me up with their military discount, and expedite the shipping process. Since I received my tuner on a Saturday, he responded on Monday with a 91 octane stage 4 and informed me as soon as his tuner got back from SEMA I would have the 4+ for my strategy code. A few days later everything was ready for me to update my tuner. I love the stage 4 plus and want to push my SHO even more. Nothing like blowing the doors of a Hemi Charger.