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Anyone driven Dinan and Eurocharged Stage 1?

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Old Feb 5, 2018 | 01:02 PM
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Anyone driven Dinan and Eurocharged Stage 1?

I have the Dinan piggyback on order, and just learned some things about warranty that has caused me to open my mind to an ECU tune from Eurocharged. Has anyone driven cars with a Dinan and a Eurocharged Stage 1 (no de-cat)? To be clear, I don't mean that the same car has both at the same time. Either same car that had one then the other, or different cars with those respective tunes.

If so, what are your impressions of both? Huge difference one way or the other?

Thanks in advance!
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Old Feb 5, 2018 | 05:42 PM
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I wouldn't expect much of a difference between the two. Eurocharged rates their ECU upgrade at 601HP and 657 ft-lb of torque. Dinan rates their piggyback tune at 609HP and 664 lb-ft of torque. I think most of these basic stage 1 tunes (no downpipes) are all very similar in how much additional boost they run (very little, +3 psi or so). So it seems they all make around 600 HP and some change (stock power output was measured at 533 HP and 572 ft-lbs by Dinan, so these engines are pretty underrated from the factory).
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Old Feb 5, 2018 | 06:35 PM
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What Alex said.

I'd pay attention though to the areas under the curves, but given both EC and Dinan have very solid records I don't think you'd go wrong either way, performance-wise.

I'm curious as to what you learned about warranty that made you feel you needed to go to a bench flash? Both EC and Dinan are doing the same warranty concurrent coverage; basically if their stuff causes the issue that MB won't warranty, they (tuner) would cover it. Are you worried about bringing the car in for work and them seeing the piggyback?
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Old Feb 5, 2018 | 09:56 PM
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Yeah interested to know too... I believe they are the same warranty wise. They'll see the piggy back, they'll see the flash... And in either case it doesn't matter which they see, because you'll have a separate supplemental warranty from each company.
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Old Feb 6, 2018 | 12:27 AM
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Originally Posted by skim7x
Yeah interested to know too... I believe they are the same warranty wise. They'll see the piggy back, they'll see the flash... And in either case it doesn't matter which they see, because you'll have a separate supplemental warranty from each company.
Just that Mercedes can't tell that a car has been flashed with a tune if you put it back to the stock tune. I am coming from Audi, where they can easily tell if you have been tuned, even if you restore the factory tune before going in. I got Dinan because I figured it would be easier to hide it (just take it off), but now knowing that Mercedes can't tell that it had been previously flashed, it opened up the field to ECU flashing as well.

In the Audi world, a piggyback is FAR inferior to a ECU tune. Sounds like that isn't the case with Mercedes. If they are basically identical performance wise, I'll just stick with the Dinan. I had assumed that Eurocharged would be an order of magnitude better, so appreciate the input on this so far.
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Old Feb 6, 2018 | 10:38 AM
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How is a piggyback comparable to a proper bench flash tune? Piggybacks will always be manipulating sensors to the engine and adding boost, while a bench flash is going to give superior performance. They needs to be real world testing, dyno numbers and 1/4 mile numbers because without that the claims are just claims.

The only good thing about Dinan piggy back is you can remove it with zero traces of your car being tuned. The Eurocharged alternative will get your car flagged and warranty voided IF they decide to "update" your car's factory software or COMMAND software update for some reason. Your car will be automatically flagged and your warranty will be gone. It's not as strict as the Audi world, but when bench flashing these cars the ECU is removed and relocated to the firewall of the engine and "hidden". If any issues arise with your car that's where they will look first.
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Old Feb 6, 2018 | 03:09 PM
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Originally Posted by spawn350
Just that Mercedes can't tell that a car has been flashed with a tune if you put it back to the stock tune. I am coming from Audi, where they can easily tell if you have been tuned, even if you restore the factory tune before going in. I got Dinan because I figured it would be easier to hide it (just take it off), but now knowing that Mercedes can't tell that it had been previously flashed, it opened up the field to ECU flashing as well.

In the Audi world, a piggyback is FAR inferior to a ECU tune. Sounds like that isn't the case with Mercedes. If they are basically identical performance wise, I'll just stick with the Dinan. I had assumed that Eurocharged would be an order of magnitude better, so appreciate the input on this so far.
Without going into a long, drawn out explanation, the dealership and/or MB will be able to tell if an ECU has been tuned if they look hard enough. There are enough signs (flash counter, startup counter since last re-flash, logs, tool markings on the bolts holding the ECU in place, etc) that they can and will find out if they try hard enough.

The real question is if they ever even try that hard and for what reason. They aren't going to download your ECU contents and send them off to MB during normal service. If you come in with a blown transmission or a faulty turbo and want it fixed under warranty? For sure they'll check. It's just a matter of how hard they'll look.
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Old Feb 9, 2018 | 02:45 PM
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I believe the engine values (temp, pressures, etc...) are constantly recorded... it says so in the owners manual. Higher than normal values would indicate a higher than normal hp/torque rating.
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