Greg Adams started Greg's Tuning Operation because he wasn't impressed with handheld programmers or canned tunes from shops that wouldn't take the time. He still isn't.
Greg Adams has been building and tuning fast cars longer than most shops around here have been around. What started as a personal frustration with mail-order tunes turned into a full-time operation on Highway 61 in Sikeston, Missouri — tuning daily drivers, drag cars, trucks, and aftermarket-EFI builds for customers across the Bootheel and well beyond.
Greg doesn't sell canned files. He drives the car, datalogs it, dynos it, and dials it until the numbers make sense — and so does the way it drives.
Not a starting-point tune you "tweak." We build the file from your car's data, from the ground up.
No guessing what the car actually made. You leave with a printed sheet.
What a combo can and can't do. No vaporware promises, no inflated numbers.
Many customers are 10+ years deep. The shop runs on referrals, not Instagram.
Greg's project cars are part of the proof. He runs what he sells.
20075 US Highway 61, Sikeston, MO 63801. Just south of Cape Girardeau. Customers come from across Missouri, southern Illinois, west Kentucky, west Tennessee, and northeast Arkansas. Mail-in PCM tunes ship nationwide.