JB4 or Dinan?
Junior Member
Joined: Jul 2008
Posts: 27
Likes: 3
911 Turbo, C63s Coupe, Raptor
I have had the Dinan tune for the last couple thousand miles. Absolutely no issues to report and the car has behaved just like stock but with a significant amount of added torque. If JB4 had been out when I was shopping for a tune I may have gone that route. I like the added features of the JB4 and I may still pull the trigger on it and sell the Dinan. I am just waiting to hear some more real-world results and reviews. The lack of information from users has surprised me a little bit.
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Newbie
Joined: Nov 2018
Posts: 9
Likes: 0
Mercedes c63 amg w205
I have had the Dinan tune for the last couple thousand miles. Absolutely no issues to report and the car has behaved just like stock but with a significant amount of added torque. If JB4 had been out when I was shopping for a tune I may have gone that route. I like the added features of the JB4 and I may still pull the trigger on it and sell the Dinan. I am just waiting to hear some more real-world results and reviews. The lack of information from users has surprised me a little bit.
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Junior Member
Joined: Jul 2008
Posts: 27
Likes: 3
911 Turbo, C63s Coupe, Raptor
It's certainly expensive but the hardware is very high quality and the warranty offered by Dinan adds value. If you shop around you can also find it for less than advertised in most cases. Also, I am used to paying for parts for Porsche vehicles, so my idea on pricing is possibly skewed.
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Senior Member
Joined: Apr 2007
Posts: 373
Likes: 89
From: Chicago, IL
2019 c63s coupe, 2008 s63 sedan, 2007 335i coupe
You pay extra because of the warranty... If others had a matching 4 yr/50k mile warranty their price would be a lot higher too.. I have seen Dinan pay to replace an engine in an m5. That's over 12k right there.
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Joined: Jan 2017
Posts: 1,117
Likes: 182
Mercedes-Benz E63s AMG
Warranty and also R&D is what you're paying for... Dinan was the first real company to produce a quality safe piggyback for this platform and they did a ton of R&D... Give credit where credit is due.
Member
Joined: May 2018
Posts: 153
Likes: 5
C63S AMG Coupe
I remember hearing that the replacement cost for the AMG engine was $75K. I have never tried to verify this and I hope I never have to find out.
Senior Member
Joined: Oct 2013
Posts: 418
Likes: 90
From: Edmonton AB
2015 C63S ,DME Tune, KW Has ,Kmac Bushings,BC Forged wheels,Gt Rotors,Porterfield R4S,Modal Intake
I have had the Dinan tune for the last couple thousand miles. Absolutely no issues to report and the car has behaved just like stock but with a significant amount of added torque. If JB4 had been out when I was shopping for a tune I may have gone that route. I like the added features of the JB4 and I may still pull the trigger on it and sell the Dinan. I am just waiting to hear some more real-world results and reviews. The lack of information from users has surprised me a little bit.
I too wonder why we are not seeing any JB4 numbers ..... kind of strange but leads one to believe it may not be making the power of the others just yet and we haven't seen any S models
Junior Member
Joined: Mar 2019
Posts: 52
Likes: 12
2019 C63 s
Back in 2009 or so I put a JB-3 on the 335i that I had back then. I later upgraded it to the JB-4 when it came out a couple years later. Never had any issue with the tune and Terry Burger at BMS was a really great guy to deal with. Answered any question I ever had directly through email right away, even at 7pm one night when I was playing with something...forget what though. He also has a cult like following on the e90 and his own forums.
Never tried Dinan but read a lot of good things about them.
I’m waiting to see what BMS releases before I get anything.
i did like all the features the JB-4 had even 8 years ago when it first came out and they’ve added a lot since I had it. Especially the on the fly map changes with the speedo and tach.
Never tried Dinan but read a lot of good things about them.
I’m waiting to see what BMS releases before I get anything.
i did like all the features the JB-4 had even 8 years ago when it first came out and they’ve added a lot since I had it. Especially the on the fly map changes with the speedo and tach.
MBWorld Fanatic!
Joined: Jan 2017
Posts: 1,117
Likes: 182
Mercedes-Benz E63s AMG
Back in 2009 or so I put a JB-3 on the 335i that I had back then. I later upgraded it to the JB-4 when it came out a couple years later. Never had any issue with the tune and Terry Burger at BMS was a really great guy to deal with. Answered any question I ever had directly through email right away, even at 7pm one night when I was playing with something...forget what though. He also has a cult like following on the e90 and his own forums.
Never tried Dinan but read a lot of good things about them.
I’m waiting to see what BMS releases before I get anything.
i did like all the features the JB-4 had even 8 years ago when it first came out and they’ve added a lot since I had it. Especially the on the fly map changes with the speedo and tach.
Never tried Dinan but read a lot of good things about them.
I’m waiting to see what BMS releases before I get anything.
i did like all the features the JB-4 had even 8 years ago when it first came out and they’ve added a lot since I had it. Especially the on the fly map changes with the speedo and tach.
Junior Member
Joined: Mar 2019
Posts: 52
Likes: 12
2019 C63 s
Newbie
Joined: Jan 2019
Posts: 4
Likes: 0
2017 C63s
