Tuned C300 4Matic runs 13.7 and picks up nearly 7 mph
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From: Miami
2015 C400
no one with a piggy back has put up any 1/4 numbers, I'd like to see if it can come close also
Last edited by whoLEEoh; Jun 29, 2015 at 11:56 AM.
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From: WI
17 E43; 21 GLS580
This entirely expected since in the CLA45 the engine turns out more or less 340 HP. That's also mostly a "tune". There is no such thing as a "piggyback" tune. Any "tune" is a modification of the ECU parameters, you can make them more or less aggressive. In fact, many tuners include multiple "tunes" (AKA ECU programs) so you can choose what you want. On the base CLA the engine feels plenty strong even though its only tuned to 200hp instead of 240 as in the C300. In fact IMO, by far the best part of the CLA is the engine, followed by the suspension. It is pretty crappy otherwise, particularly the transmission which is simply horrible.
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Junior Member
Joined: Dec 2014
Posts: 26
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From: Miami
2015 C400
This entirely expected since in the CLA45 the engine turns out more or less 340 HP. That's also mostly a "tune". There is no such thing as a "piggyback" tune. Any "tune" is a modification of the ECU parameters, you can make them more or less aggressive. In fact, many tuners include multiple "tunes" (AKA ECU programs) so you can choose what you want. On the base CLA the engine feels plenty strong even though its only tuned to 200hp instead of 240 as in the C300. In fact IMO, by far the best part of the CLA is the engine, followed by the suspension. It is pretty crappy otherwise, particularly the transmission which is simply horrible.
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From: WI
17 E43; 21 GLS580
Well I don't know much about piggy backs but I do know that an ecu tune is different than a piggy back. You tune the ecu and keep the safety features in check, you have consistency and it's way more secure. With a piggy back, you are adding a 3rd party device to the ecu, tricking the ecu to change its parameters, that's completely different and inconsistent. there are a lot of complaints about inconsistencies in a piggy back, especially from BMW guys. But this is neither here nor there, this is a thread about the ecu tune and its proven numbers, maybe whenever a company/person who makes piggy back tunes can post up a similar thread the discussion on piggybacks can be continued there lol
Its just a lot easier to swap the entire ECU (the box). If you are doing a "reflash" it takes 30 min to an hour to reprogram the cars unit through the OBD port. If you swap the whole unit its a 5min thing you can do anywhere, as seen in the video, real plug and play. Of course, you have to have an ECU handy which costs $$$$$!
My guess is that a hard tune of the 3.0L engine would easily provide 100-150 additional HP. The C450 is a very mild tune over the c400 (<10%)
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Nice video!
With our Stage1, all of the connectors installed, 0% slope in 70 degree weather, we ran 13.8@100.9 using a GPS VBOX. Same device the magazines use. Looks to be in the same ball park as the car above. The Stage1 brown patch on the C300 is a real pita to reach. Without that I'd subtract at least .1th.
100% stock we ran 14.1@99mph. I'm not sure why the car in the video is so much slower stock?
Anyway our C300 Stage1 tuning is pretty solid and widely used. At $379 with a 30 second install/removal it's a great way to get started with tuning the C300. And our C400 tuning is really strong too. In both cases I'm sure with a full ECU flash you can extract a little more power. Our Stage1 was never intended to be the be-all-end-all tune. We use the JB4 for that. The Stage1 is a simple to install and remove tuner that makes the car a lot more fun to race. Once you start flashing the DME, the true boost/load targets will be stored, tamper code bit set, so it's definitely a more precarious situation. Different strokes for different folks.
100% stock we ran 14.1@99mph. I'm not sure why the car in the video is so much slower stock?
Anyway our C300 Stage1 tuning is pretty solid and widely used. At $379 with a 30 second install/removal it's a great way to get started with tuning the C300. And our C400 tuning is really strong too. In both cases I'm sure with a full ECU flash you can extract a little more power. Our Stage1 was never intended to be the be-all-end-all tune. We use the JB4 for that. The Stage1 is a simple to install and remove tuner that makes the car a lot more fun to race. Once you start flashing the DME, the true boost/load targets will be stored, tamper code bit set, so it's definitely a more precarious situation. Different strokes for different folks.
Last edited by Jon@BMS; Jun 29, 2015 at 06:30 PM.
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From: North San Diego, CA
2015 C300
will hold my breath
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SL65
You can not recalibrate or tune a C300 Mercedes ECU through the OBD This was a cloned ECU with a Recalibrated tune only The computer swap was only to compare before and after runs in the the same conditions as you can see it's also the heaviest version of the C300 4matic panoramic roof etc.
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2016 Mercedes C300W4
Pretty sweet! What was up with that guy driving the Vette, did he take a nap at the light there? Haha!
1 second and 7mph is a serious gain from an ECU swap. If I weren't leasing mine I might think about doing that!
1 second and 7mph is a serious gain from an ECU swap. If I weren't leasing mine I might think about doing that!
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