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BMW 5-Series (G30) Forum Engine, Exhaust, Drivetrain, Tuning Modifications Piggyback vs ECU flash if both produce 600hp

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      01-25-2020, 08:39 AM   #1
Dutt1113
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Piggyback vs ECU flash if both produce 600hp

What is the point of an ecu flash if a good piggyback like JB4 or expensive Dinan (warranty) if both produce 600hp at the crank? The piggyback will be removable and won't void your warranty.
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      01-25-2020, 12:37 PM   #2
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Originally Posted by Dutt1113 View Post
What is the point of an ecu flash if a good piggyback like JB4 or expensive Dinan (warranty) if both produce 600hp at the crank? The piggyback will be removable and won't void your warranty.
This is a loaded question. Dinan is not making 600hp from their piggy. My flash tune doesn't even make 600hp. Don't go by advertising and what their websites say. Go by what people have done at the track or dragy with stage 1 tunes or a piggy back.

I have the Dinan for 2019M550 and it was a great breath of fresh air for my car, a solid 45-55hp over stock. My stock f10 M5 that dyno'd 504 to the wheels would slowly walk away on a 40 roll from the M550 with Dinan. 0-60 there's no competition but it's due to traction. 1/4 M550 probably still beats f10 M5 but due to traction again.
Just saying watch out for all the claims of what your reading as advertisements
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      01-28-2020, 10:46 AM   #3
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Quote:
Originally Posted by Dutt1113 View Post
What is the point of an ecu flash if a good piggyback like JB4 or expensive Dinan (warranty) if both produce 600hp at the crank? The piggyback will be removable and won't void your warranty.
The biggest advantage for an ECU flash if done right is the power delivery. Its much smoother on an ECU flash vs a piggyback
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