Johnson Customs ECM Tuning

11/10/2023

First round of GT Arena Motocross. Knoxie-Boy137 doing his interview with Fox sports One. Big thanks to Viralbrand Sofa Brand SCS Salmen Cycle Solutions Braap Factory Dunlop Moto S&L Trenching Johnson Customs

07/20/2023

Knoxie-Boy137 had a blast at his first pro national race.

10/12/2022

Now for sale on Ebay! Ford OEM ECM ECU PCM Tuning for Cam Phaser delete / phaser lock out kits. https://www.ebay.com/itm/314174612270?hash=item492644232e:g:dKcAAOSwqMZjPGDN&amdata=enc%3AAQAHAAAA8Ksj3Rsmx2Dk5vPTNajy5%2B03EcnmN95hM6ICdMd%2Bo7KIeIrS%2FePrdkufv4HiyvXnxVi8sMDuyFO22LgNGhhTD4F3G1p407rMgKdAA55W7zkjS9eaE0iJwpFNFsVrupcDltS6G%2F8Mznhe%2BO55TQXhRiOIeWOpS19m1DjWY%2Bb48ufFBTd81Jsgh2PSQXfNHCHw%2F9iQNd3U5YNgkOUIMezZO65Jnmh9LLgJBQ5aehnU2ORm%2FSc1UT66glVzvuDjdC6%2FFm93o%2FXeOc%2FeBCdkyus6GqTAHSMf86uWlpvoIgv%2BjZLoava7z9FDWweukveANNwzrA%3D%3D%7Ctkp%3ABk9SR_SX0875YA

09/28/2022

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 properly with them FOR ONLY $45 EXTRA! Ford Phaser lock tune can be used as a preventive prior to cam phaser failure without opening the engine! Plug and Play $154.99 Saving you thousands! Call any time with questions!

09/25/2021

15% OFF !!!

Drop us a 5 ⭐️ Google review and get 15% off you current or future order! Simply type “Johnson Customs Sioux City Iowa” into your Google search bar and then click “Reviews” anyone that leaves us a full 5 Star review will get 15% off any order they choose. Ebay listing included!

09/10/2021

Take advantage of our September Special!
All September we are offering our GM / Chevrolet AFM DOD Active Fuel Management Displacement on Demand Delete Disable Tuning Service for $49.99

Product Description:
Having trouble with your GM AFM/DOD equipped vehicle? Otherwise known as 4 cylinder mode. If your engines system has failed and you plan on deleting this problem from your engine once and for all you must reprogram your vehicles computer / ECU. No need to permanently install any attachments or hand held devices into your OBDII port. The tuning we provide will permanently delete AFM/DOD within your ECU. This will remedy any check engine lights produced by this system. This tune is also the perfect preventative maintenance in the prevention of the failure of this system. If your system is undamaged simply disable it with this service and then there is no need to worry about DOD AFM failure that will result in costly engine repair bills totaling well into the thousands not to mention weeks without your vehicle! Worried about the next owner not wanting your vehicle because the system is disabled? Worry no more! If at any time you want us to enable the system we will at half the price. $25 Stop in and hang out while we process your vehicle. Normal wait time in most cases is less than 30 minutes. This sale is also open to online customers just include the code at the time of purchase.

FOR ONLINE CUSTOMERS ONLY:
With your battery disconnected, remove your factory ECU from inside the engine compartment. This is very simple to do and will not require any automotive experience. If you need help, do not hesitate to call us at 712.204.3955 for assistance. Once you ship your ECU to us, our skilled staff will flash (reprogram) it with the changes listed and have it shipped out via USPS priority mail within 24 hours and in most cases the same day (Mon.-Fri.). Expedited shipping available for and additional $32 (USPS Priority Mail Express One day)

Tuning Performed

- AFM / DOD Disabled
- DTC codes for AFM/DOD disabled

Wanting more performance while your at it? Chose from any of the following packages at the add-on price.

Level 1 Tuning
Street Stock ($59.99)
Performance Timing Advance and Fuel Tuning for 87 Octane Gas; Delete Speed Limiter
Not for performance add-ons (camshaft, etc.)

Level 2 Tuning
Street Stock Performance ($79.99)
Performance Timing Advance and Fuel Tuning for 90/93 Octane Gas; Delete Speed Limiter
Not for performance add-ons (camshaft, etc.

07/19/2021

Visit our Ebay Store 🚗
https://www.ebay.com/sch/make-stei/m.html?_nkw=&_armrs=1&_ipg=&_from=

07/19/2021

https://www.ebay.com/itm/164693830109

Are you looking to get your afm disabled??. Its a win-win. THIS IS A TUNING SERVICE. 24 hour turn around! performance tunes, fuel milage tunes and towing tunes available just ask! 07-09 Chevrolet Impala - 3.9L 5.3L, 6.0L.