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Specialty Performance & Custom Automotive Tunes/Tuning. 24 Hour Turnaround on all mail-in orders! Specializing in: Ford Lincoln Mercury 3 valve cam phaser delete / lock out tuning, GM Chrysler DOD MSD AFM Deletes, Security PATS SKIM VATS removal & dyno base tunes for all makes & models. Basic tune add ons only $10 each. !NEW! Mail in phaser lock service. Mail your used/worn triton 3v cam phasers with your computer & we will custom mill & install blocks to fit any style phaser while we Tune your vehicles OEM computer to work ... read more
1010 South Cecelia Street, IA, 51106, US, Sioux City, IA, 51106, United States
Get directionsWeekday | Schedule | Status |
---|---|---|
Mon | 09:00 a.m. to 10:00 p.m. | |
Tue | 09:00 a.m. to 10:00 p.m. | |
Wed | 09:00 a.m. to 10:00 p.m. | |
Thu | 09:00 a.m. to 10:00 p.m. | |
Fri | 09:00 a.m. to 10:00 p.m. | |
Sat | 5:00 p.m. to 10:00 p.m. | |
Sun | 5:00 p.m. to 10:00 p.m. |
Johnson custom tuning are the best. 100% professional and extremely knowledgeable in the field of tuning. Needed an Ecu unlocked and skim delete for a dodge charger engine swap, got the job done and car started right up. Thank you will definitely be back again!
Excellent! Professional and exceptional customer service
Johnson Customs ECM TUNING has a 4.6 star rating with 20 reviews.
Johnson Customs ECM TUNING is closed now. It will open tomorrow at 9:00 a.m.