Apr 29, 2023 · I’ve recently had S&S 465 cam fitted so I changed my tuner from a FP3 to a Thundermax. The thundermax maps were bit off from my set up but customer support said to go with one and run …

May 4, 2020 · Thundermax Tuning Help: 131" Jump to Latest 4.7K views 5 replies 5 participants last post by ANGRYRANGER15 Oct 17, 2025 D

Dec 12, 2020 · As I dropped my Bike off for the 131" upgrade, I have discussed tuning/tuners with my mechanic. He said that he will use the original Harley tuner, that there is no advantage of spending …

Oct 25, 2007 · Thundermax installation and tuning guide I promised to do some screen shots of the tuning screens, but found that this doc has everything in it. Here is a link to the pdf doc, the file was …

Jun 4, 2009 · ThunderMax/AutoTune Advice & Info Jump to Latest 6.2K views 5 replies 3 participants last post by fatboydoc04 Jun 5, 2009 fatboydoc04 Discussion starter

Dec 7, 2023 · Thanks in advance for your input! Put a Thundermax on my 2016 Road King just under 500 miles ago. Cruising down the road, come to a stoplight, throttle closed, clutch in, brake to a stop …

Nov 17, 2006 · ThunderMax AutoTune Module Now Available! The ThunderMax Auto-Tune Module works with your ThunderMax EFI controller to create a Wide-Band Closed Loop EFI System.

Nov 9, 2018 · The Thundermax is an excellent on-the-fly tuner that adjusts automatically. You might be able to dyno tune and get a little more out of it but I doubt that’s worth the money you’d spend on the …

Sep 17, 2013 · For the record, this is my first experience with a Thundermax tuner. I have two good running 2004 Ultra Classics that are the same (stock motor, open air box, Vance & Hinds Pro Pipe). …

Nov 23, 2024 · When I start my M8 with a Thundermax tuner, the initial cold rev is 1400, then after a few seconds it drops to 950-1000.