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Discussion Starter · #1 · (Edited)
Hey guys this is a Dinan stage 4 thread....Feel free to add whatever you like that's related to stage 4. Ill start by adding this pic. So far I've driven the car just a short trip in traffic but already I can tell the power delivery at least to me is smoother than stage 3 and the power is more brutish..so not only is it a beast but a refined one at that.. I'll post more info as I drive it some more.

 

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Congrats! Is the intercooler officially available from Dinan because I don't see it on their website yet. who was your installer? Thanks and happy driving!
 

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Discussion Starter · #4 ·
Yes, the intercoolers are officially available...not sure why they haven't updated their website but I'm sure they will. I had mine done at Patrick BMW in schaumburg, illinois.....

Unfortunately I did not get around to do a before dyno but their are a few that have done that on stage 3 and if they do come across this thread feel free to post those results. I should have dyno results within 2 weeks.
 

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Do you know what is the official total hp and torque that Dinan is advertising? Thanks!
 

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Discussion Starter · #6 · (Edited)
Officially they are claiming a 20hp/10tq bump from stage 3 but that might be on the conservative side....so around 530/540hp depending on your exhaust setup with 590/600tq....Horsepower could be more but I can't verify anything right now till after I dyno the car.
 

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Did they also give you heads up about stage 5?
 

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Discussion Starter · #9 ·
Did they also give you heads up about stage 5?
Stage 5 is the Intake/High Flow Oil Coolers and its going to be released fairly soon..I don't have an exact date but I know its not to far off since the intake and everything needed for stage 5 has already been developed and in production.


 

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This is exactly why I love FI engines. The average person out there would have no idea that your regular looking 5 series packs 500+ hp under the hood
I couldn't agree more. My five series is a major sleeper/wolf in sheep's clothing. Which is just the way I like it.
 

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This is such a tempting mod. But my love affair with Rolex watches has taken most of my mod cash. LOL
 

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I wonder if Dinan is thinking of retrofitting a LSD on this car as a part of future stages. It's the only thing required for the RWD to put crazy amounts of HP down. xDrive owners don't have this problem
So true. The traction control light basically never comes on under acceleration in my 501 bhp Dinan Stage 2 550xi. By contrast it came on a lot in the 300 bhp 535i I loaned this whole week. The power cut is so annoying
 

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I wonder if Dinan is thinking of retrofitting a LSD on this car as a part of future stages. It's the only thing required for the RWD to put crazy amounts of HP down. xDrive owners don't have this problem
My local dealer had an event that Steve Dinan spoke at last summer, he said they were working on an LSD. Then again, he said it would be out last year:dunno:
 

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Discussion Starter · #17 ·
The stage 4 tune IMO is significantly different than 3. The power delivery is smoother and much more intense. I can definitely tell the difference going from 3 to 4. Its very clear to me especially the more I drive it.
 

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Discussion Starter · #19 ·
How much did it cost and how many labor hours involved

Sent from my SAMSUNG-SGH-I747 using Bimmer App
Stage 4 intercoolers are 2500+200 for the upgrade in tune from 3 to 4 and there is a 6/hr install time.....this is of course with no discount.
 
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