2014-Present John Deere 4R Series Reflash

Tier4 Emission Reflash and Horsepower Tuning Engine Control Module has to be shipped to our location for bench flashing with a turnaround time of 3 days. Contact sales@reimertuning.com for more information. We can ship anywhere in North America in 1 business dayIncludes 1 year software warrantyNote: Items with expedited shipping ordered after 12 ET will not go out until the following day. Please take a minute to review our position on Over the Air (OTA) updates.  In need of more power?This is a question that we get asked quite often. If you are in a situation where you feel like the machine you have is lacking in the horsepower department, we can help! When it comes to horsepower increases, the best way to explain it is that we are making the engine more efficient. It produces more power, sooner. When operating the equipment, it will take less load on the engine to get up to speed. This reduced the overall load on the engine, and as a result reduces the amount of fuel required. If ther