DME Tune
What PLUGS are you guys changing them to Specifically? Specs/Brand?
Why are you guys changing plugs? Was something happening. Or is it a Proactive Step to help with eliminating Detonation?
Are you just going to a colder plug? Any potential negative with swapping plug?
Last edited by TexasBenzBandit; Nov 23, 2019 at 01:34 AM.
What PLUGS are you guys changing them to Specifically? Specs/Brand?
Why are you guys changing plugs? Was something happening. Or is it a Proactive Step to help with eliminating Detonation?
Are you just going to a colder plug? Any potential negative with swapping plug?
Shows the 2020 model producing 469HP whereas the previous model year producing 503. Guessing it's a typo.
For people who have the DME tune for their C63s Coupe, have any of you run into warranty issues with your dealership when you take it in for service?
honestly I just had my 2020 C63s tuned by DME last week I had my Computer flashed (stage2) catless.. This past weekend I dyno measured the car....... not happy at all. The car made a measly 509WHP. The car comes with 503HP I understand that there is a 12% loss of power from engine to wheel I get that.
then what doesn’t help is that I messaged them because honestly that number is trash... spend $2,300 to make the same amount of HP your car comes with from factory? Lol like I said I understand the 12% loss.. my stock C63s before the mods made 460HP on the dyno. Because of the 12%.... but supposedly they are “tested and proven” but they don’t advertise “crank” as well. DME TUNING IS VERY MISLEADING. And upon buying the tune the representative never told me that I need to spend another $2000 on a CPC unlock in order to actually feel a great difference in the performance of the vehicle. If they would have been honest with me I wouldn’t have bought the tune because why would I spend this amount of money on a tune that I won’t be able to feel? unless I spend another $2000 for the CPC to feel the DME tune... let’s be honest here... 500 WHP is extremely disappointing when they promise 650HP/730TQ they are very misleading like I said I understand the 12% loss but this tune is not worth $2300 maybe half of that would be a good deal. Extremely disappointed.
ooooh yeah they basically told me to screw myself if I want the stock tune back and I would have to pay them five hours labor (about $600) to remove the computer and put it back in.
honestly I learned my lesson to trust DME tuning I’m cutting my losses with them I’m not even going to ask for my money back I’m just gonna take my business elsewhere.
then what doesn’t help is that I messaged them because honestly that number is trash... spend $2,300 to make the same amount of HP your car comes with from factory? Lol like I said I understand the 12% loss.. my stock C63s before the mods made 460HP on the dyno. Because of the 12%.... but supposedly they are “tested and proven” but they don’t advertise “crank” as well. DME TUNING IS VERY MISLEADING. And upon buying the tune the representative never told me that I need to spend another $2000 on a CPC unlock in order to actually feel a great difference in the performance of the vehicle. If they would have been honest with me I wouldn’t have bought the tune because why would I spend this amount of money on a tune that I won’t be able to feel? unless I spend another $2000 for the CPC to feel the DME tune... let’s be honest here... 500 WHP is extremely disappointing when they promise 650HP/730TQ they are very misleading like I said I understand the 12% loss but this tune is not worth $2300 maybe half of that would be a good deal. Extremely disappointed.
ooooh yeah they basically told me to screw myself if I want the stock tune back and I would have to pay them five hours labor (about $600) to remove the computer and put it back in.
honestly I learned my lesson to trust DME tuning I’m cutting my losses with them I’m not even going to ask for my money back I’m just gonna take my business elsewhere.
Though 509whp is low for a tuned W205, you gained roughly 50whp over stock. The tune is clearly uploaded on the car. They may have been referring to an additional transmission tune to hold more power capacity than your current software. Like mentioned earlier, the ECU tune is clearly uploaded on the car, there could be other factors that caused it to be low. What gas were you running? When did you last change spark plugs, was car misfiring at all? What was the temperature out when on the dyno, was there dyno fans set up on the car? Why don't you post the dyno sheet (stock dyno and tuned dyno if you can).
Last edited by 1slick_c63amg; Dec 5, 2020 at 10:32 PM.
Though 509whp is low for a tuned W205, you gained roughly 50whp over stock. The tune is clearly uploaded on the car. They may have been referring to an additional transmission tune to hold more power capacity than your current software. Like mentioned earlier, the ECU tune is clearly uploaded on the car, there could be other factors that caused it to be low. What gas were you running? When did you last change spark plugs, was car misfiring at all? What was the temperature out when on the dyno, was there dyno fans set up on the car? Why don't you post the dyno sheet (stock dyno and tuned dyno if you can).
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Looking forward to seeing your graphs, let's look at the delta and power curves as well and not just the peak figures.
Last edited by 1slick_c63amg; Dec 5, 2020 at 10:52 PM.
then what doesn’t help is that I messaged them because honestly that number is trash... spend $2,300 to make the same amount of HP your car comes with from factory? Lol like I said I understand the 12% loss.. my stock C63s before the mods made 460HP on the dyno. Because of the 12%.... but supposedly they are “tested and proven” but they don’t advertise “crank” as well. DME TUNING IS VERY MISLEADING. And upon buying the tune the representative never told me that I need to spend another $2000 on a CPC unlock in order to actually feel a great difference in the performance of the vehicle. If they would have been honest with me I wouldn’t have bought the tune because why would I spend this amount of money on a tune that I won’t be able to feel? unless I spend another $2000 for the CPC to feel the DME tune... let’s be honest here... 500 WHP is extremely disappointing when they promise 650HP/730TQ they are very misleading like I said I understand the 12% loss but this tune is not worth $2300 maybe half of that would be a good deal. Extremely disappointed.
ooooh yeah they basically told me to screw myself if I want the stock tune back and I would have to pay them five hours labor (about $600) to remove the computer and put it back in.
honestly I learned my lesson to trust DME tuning I’m cutting my losses with them I’m not even going to ask for my money back I’m just gonna take my business elsewhere.
then what doesn’t help is that I messaged them because honestly that number is trash... spend $2,300 to make the same amount of HP your car comes with from factory? Lol like I said I understand the 12% loss.. my stock C63s before the mods made 460HP on the dyno. Because of the 12%.... but supposedly they are “tested and proven” but they don’t advertise “crank” as well. DME TUNING IS VERY MISLEADING. And upon buying the tune the representative never told me that I need to spend another $2000 on a CPC unlock in order to actually feel a great difference in the performance of the vehicle. If they would have been honest with me I wouldn’t have bought the tune because why would I spend this amount of money on a tune that I won’t be able to feel? unless I spend another $2000 for the CPC to feel the DME tune... let’s be honest here... 500 WHP is extremely disappointing when they promise 650HP/730TQ they are very misleading like I said I understand the 12% loss but this tune is not worth $2300 maybe half of that would be a good deal. Extremely disappointed.
ooooh yeah they basically told me to screw myself if I want the stock tune back and I would have to pay them five hours labor (about $600) to remove the computer and put it back in.
honestly I learned my lesson to trust DME tuning I’m cutting my losses with them I’m not even going to ask for my money back I’m just gonna take my business elsewhere.
then what doesn’t help is that I messaged them because honestly that number is trash... spend $2,300 to make the same amount of HP your car comes with from factory? Lol like I said I understand the 12% loss.. my stock C63s before the mods made 460HP on the dyno. Because of the 12%.... but supposedly they are “tested and proven” but they don’t advertise “crank” as well. DME TUNING IS VERY MISLEADING. And upon buying the tune the representative never told me that I need to spend another $2000 on a CPC unlock in order to actually feel a great difference in the performance of the vehicle. If they would have been honest with me I wouldn’t have bought the tune because why would I spend this amount of money on a tune that I won’t be able to feel? unless I spend another $2000 for the CPC to feel the DME tune... let’s be honest here... 500 WHP is extremely disappointing when they promise 650HP/730TQ they are very misleading like I said I understand the 12% loss but this tune is not worth $2300 maybe half of that would be a good deal. Extremely disappointed.
ooooh yeah they basically told me to screw myself if I want the stock tune back and I would have to pay them five hours labor (about $600) to remove the computer and put it back in.
honestly I learned my lesson to trust DME tuning I’m cutting my losses with them I’m not even going to ask for my money back I’m just gonna take my business elsewhere.
Mustang dyno:
568 hp @5300 rpm
633 ft/lb @5100 rpm
Of course power drops off very hard after 5500.
BTW this car is for sale if anyone is interested. Houston, TX.
Last edited by Dexter Talbert; Mar 19, 2022 at 02:19 PM.








