Noob tuning question




All this would only be considered well after the break-in period, of course, if at all...




FYI - a lot of tuners quote “over 100 hp” increase, but many tuners will take Mercedes stock 503 HP figure and subtract that from the stage 1 power level (almost always over 600 hp). But the truth is, the C63S makes closer to 530ish HP stock, so realistically you’re only seeing about a 70-85 HP increase with a tune only.
Still very impressive gains nonetheless! It’s a night and day difference, you can feel that added torque and HP everywhere.
FYI - a lot of tuners quote “over 100 hp” increase, but many tuners will take Mercedes stock 503 HP figure and subtract that from the stage 1 power level (almost always over 600 hp). But the truth is, the C63S makes closer to 530ish HP stock, so realistically you’re only seeing about a 70-85 HP increase with a tune only.
Still very impressive gains nonetheless! It’s a night and day difference, you can feel that added torque and HP everywhere.
Can you comment on reliability, warranty conflicts, and who you used?
Was it really as simple as taking a computer to the car for a few minutes and that's it?
Can you comment on reliability, warranty conflicts, and who you used?
Was it really as simple as taking a computer to the car for a few minutes and that's it?
And yes a ecu flash tune takes about an hour to 90 mins to install.. Dinan piggyback takes 3-4hrs to hook up to sensors to trick the ecu instead of rewriting part of it... But the Dinan piggyback comes with a matching factory warranty the ecu flashes do not. I have had a few Dinan ecu flashes on bmw's with no issues but they didn't crack the ecu's code to flash mercs so they just came out with the piggyback for now.
Personally I plan on keeping this car awhile so I am just going to swap out the tires for Michelin ps4s which seem to have the best rating in both dry and wet weather. If I need more power after then I will think about a tune.
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And yes a ecu flash tune takes about an hour to 90 mins to install.. Dinan piggyback takes 3-4hrs to hook up to sensors to trick the ecu instead of rewriting part of it... But the Dinan piggyback comes with a matching factory warranty the ecu flashes do not. I have had a few Dinan ecu flashes on bmw's with no issues but they didn't crack the ecu's code to flash mercs so they just came out with the piggyback for now.
Personally I plan on keeping this car awhile so I am just going to swap out the tires for Michelin ps4s which seem to have the best rating in both dry and wet weather. If I need more power after then I will think about a tune.
I'm curious regarding an "ecu flash tune" whether there is actually *any* risk of voiding the warranty? Like what is the risk, if at all? Is there a chance the tuner can brick the car or make it so that I have to take it into the dealer to get fixed for any reason? Is this an idiot-proof process?
Probably not interested in doing anything at the onset, but just want to learn a bit in the process...
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I'm curious regarding an "ecu flash tune" whether there is actually *any* risk of voiding the warranty? Like what is the risk, if at all? Is there a chance the tuner can brick the car or make it so that I have to take it into the dealer to get fixed for any reason? Is this an idiot-proof process?
Probably not interested in doing anything at the onset, but just want to learn a bit in the process...
That said, for anyone who has done these kinds of tunes, I'm very curious how it works on our vehicles, etc. Thanks
All this would only be considered well after the break-in period, of course, if at all...
When the tuner is done you get 600/610 flywheel Hp.
I'm curious regarding an "ecu flash tune" whether there is actually *any* risk of voiding the warranty? Like what is the risk, if at all? Is there a chance the tuner can brick the car or make it so that I have to take it into the dealer to get fixed for any reason? Is this an idiot-proof process?
Probably not interested in doing anything at the onset, but just want to learn a bit in the process...
I have the Dinan tune (piggyback) and love it. Dinan is the only tuner that offers a true factory-matching warranty, and they've been around longer than almost any other tuner (1979!). If something happens with your car as a result of their tune and Mercedes doesn't cover it, they'll cover it for you. To be honest, a Stage 1 tune is very safe and reliable for this engine - it's not being stressed, so I wouldn't worry much about anything catastrophic happening - it's just nice to have the peace of mind in case anything happens.
I'm actually putting my Dinan tune up for sale if you're interested - I'm installing bigger turbos and need to go the custom tune route.
Upgrade to better tires like others said & stomp the pedal to the floor for your speed wants.
If that's not enough, then consider stage 1 tune aka ecu tune.
Option 1: Piggyback ( the dianian from above). External hardware that hooks up and tricks the cars ecu to gain performance. Usaully less power gain then ecu tune but untraceable for warranty purposes (just take it off before you give your car to the dealer)
Option 2: getting your ecu flashed. Most power gain, but only buy from a big name tuner (eurocharged, weistic, brabus, renntech, to name a few theres more good options). I wouldn't trust a local tuner with something as complex as our car. Why? Because off chance major motor failure happens, the dealer will see something was changed if they dig deep enough. Theres no 100% way to hide an ecu tune, just depends on how deep the dealer digs.
Final thoughts, in either method your car will be faster & more responsive, but I also subscribe to use your power or loose it 😂
I have the Dinan tune (piggyback) and love it. Dinan is the only tuner that offers a true factory-matching warranty, and they've been around longer than almost any other tuner (1979!). If something happens with your car as a result of their tune and Mercedes doesn't cover it, they'll cover it for you. To be honest, a Stage 1 tune is very safe and reliable for this engine - it's not being stressed, so I wouldn't worry much about anything catastrophic happening - it's just nice to have the peace of mind in case anything happens.
I'm actually putting my Dinan tune up for sale if you're interested - I'm installing bigger turbos and need to go the custom tune route.
The obvious benefit of this motor is that it designed for and capable of much bigger numbers so the ceiling is high and the risk of a failure caused by the tune is low.
I’ve already bought one for my ‘19s coupe, but will burn through the stock tires first (which wont apparently take that long), change to PS4s and put 265s on the front and 305s on back and install it then. Looking forward to that day.
It's also not slow. I ran 11.5 @ 127 MPH on pump gas and full weight. I think it's one of the best piggyback options available for this platform.
You want to hear about overpriced garbage? Take a look at how much Brabus charges for their piggyback tune...




