2003-2006 Mercedes-Benz CLK55/C55 AMG Mk-Ultra Calibrated TCU
$250.00
Stock Plus+ is for the guys who don’t wanna feel much of the shift and want street cruisers. At wide-open throttle, shifts become faster but not firm like stage 1. Includes torque management overhaul to minimize bogs/power dips during around town shifts. Torque Limits were raised also. Agility Mode Included for sprinted driving and no gearbox live for the moment learning.
Stage 1 Street Tune gives faster around town/street nice shifts depending on the load of the engine. Wot Fast crispt shifts. Torque Management Overhauled. No bogs/dips in power during shifts. Torque Limiters Raised. Agility Mode Included and Modified for faster firmer shifts. No gearbox learning with A mode.
DTM Custom Firmware. Firmware used in the DTM CLK55 but with a ton of changes for faster shifts and much more. Night and Day difference compared to stock TCU. Includes C/S/A/M. It comes stock with Full M-Mode. .
Handling time is 1-3 business days for shipping. Each TCU is flashed and tested before shipment.
| Weight | 15 oz |
|---|---|
| Dimensions | 6 × 2 × 9 in |
2 reviews for 2003-2006 Mercedes-Benz CLK55/C55 AMG Mk-Ultra Calibrated TCU
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Biker (verified owner) –
Bought the dtm software for my m113k swapped clk55. Drove the car a few years but never wanted to mess with the tcu tuning because on my other m113k car never really noticed a difference trying tcus from a bunch of other vendors. Even bought a tune that I had to buy bench equipment to write. After all that work the shifts felt exactly the same as stock. Rode in many srt8s that had way faster shifting from the same trans. Decided to try this version because after doing much research I discovered mk electronics had actually figured out how to fully tune these and had the full source code. The DTM early lockup made the car way more peppy. Before the car always felt like it was lagging in the lower rpms, but now it feels exactly how it should for the power. Top end rpm shifts are drastically improved. The car felt like it was shutting the throttle body before each shift for a quick millisecond, that feeling is now gone as well. Also had a problem where my gears 1-2 shift was super rough when the trans was cold which was 100% software problem because it happened before I did the swap. Put a new trans in when I swapped it and the problem was still present, after the new tcu all is well! Gear 1-2 shifts smooth now. Probably going to order an SLR tcu and try it on my other car. Soon I will get my draggy to take 60-130 tests and test time differences from stock tcu.
Steve Koen (verified owner) –
Very happy with the Speed shift++ order. Having the extra “A” mode allows me drive the car that seems to be between Comfort and Sport. My C55 is a daily driver with inner city traffic and some highway. Upon initial installation the Sport mode 2 to 1 downshifts were very firm. After driving for a few days the shifts are now crisp but smooth, perfect. I felt like the OEM TCU was the weak link in this car. So, this TCU will have me keep this car forever.