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      04-03-2020, 12:54 PM   #1
KrackerXL
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Time for mods. What’s available?

Got my 850 few months back looking to do a tune and downpipes. Haven’t really found anything available. Boot mod 3 said they are working on it but no etas
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      04-03-2020, 01:29 PM   #2
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Quote:
Originally Posted by KrackerXL View Post
Got my 850 few months back looking to do a tune and downpipes. Haven’t really found anything available. Boot mod 3 said they are working on it but no etas
Springs to lower the stance.
Spacers to contribute to stance from rear/front.
Burger JB4 to give you +100hp and +140ft Ibs of torque (to the wheels)
New shift paddles.
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      04-03-2020, 02:07 PM   #3
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what shift paddles do you recommend?
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      04-03-2020, 02:42 PM   #4
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Quote:
Originally Posted by tracythorne View Post
what shift paddles do you recommend?
@r33_RGSport Ben can help you there. I've had two sets from him and they're a big upgrade.
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      04-03-2020, 04:04 PM   #5
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Quote:
Originally Posted by tracythorne View Post
what shift paddles do you recommend?
AutoTecknic, here is the picture on GlossBlack that limeypride upgraded his to.

Tune wise, RaceChip have it.
Downpipe wise, Evolution Racewerks have it. It is the same as M550iX.

Let me know if you want to start modding it. I can get them done for you.
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      04-03-2020, 07:24 PM   #6
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Quote:
Originally Posted by r33_RGSport View Post
AutoTecknic, here is the picture on GlossBlack that limeypride upgraded his to.

Tune wise, RaceChip have it.
Downpipe wise, Evolution Racewerks have it. It is the same as M550iX.

Let me know if you want to start modding it. I can get them done for you.

Any sounds clips of dps with stock exhaust?
Never used race chip and been out of bmw for many years now. How does it work and any issues with factory warranty?
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      04-03-2020, 07:29 PM   #7
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Quote:
Originally Posted by KrackerXL View Post
Any sounds clips of dps with stock exhaust?
Never used race chip and been out of bmw for many years now. How does it work and any issues with factory warranty?
I don't have sound clips unfortunately. But it will be the same as M550 with catless downpipe.
I only have sound clip video on catless with AC Schnitzer exhaust.



RaceChip is a piggyback tuning, similar to Dinan or BMS.
Since Nov 2019, they covers engine warranty for 2 years capped at $10K. Details are available on their website.
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      04-03-2020, 07:38 PM   #8
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I think I’ll wait on the bootmod 3 tune then. I’ve read good things across all other platforms.
The dps sound pretty good
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      04-03-2020, 09:46 PM   #9
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Quote:
Originally Posted by KrackerXL View Post
I think I'll wait on the bootmod 3 tune then. I've read good things across all other platforms.
The dps sound pretty good
I'm curious, why—what attribute(s) of a vendor's tune influence your choice?
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      04-04-2020, 05:58 AM   #10
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do those shift paddles replace or do they just fit over (in front or behind) the originals? how easy are they to install?
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      04-04-2020, 10:07 AM   #11
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I'd love to find one that removes the top speed limit too.
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      04-04-2020, 10:18 AM   #12
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Quote:
Originally Posted by limeypride View Post
Springs to lower the stance.
Spacers to contribute to stance from rear/front.
Burger JB4 to give you +100hp and +140ft Ibs of torque (to the wheels)
New shift paddles.
I have an 840i xdrive gran coupe (couldn’t do the 850m). Is the burger jb4 avail for that? I’m looking for some more torque/hp.
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      04-04-2020, 12:12 PM   #13
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Quote:
Originally Posted by gustovier View Post
Quote:
Originally Posted by limeypride View Post
Springs to lower the stance.
Spacers to contribute to stance from rear/front.
Burger JB4 to give you +100hp and +140ft Ibs of torque (to the wheels)
New shift paddles.
I have an 840i xdrive gran coupe (couldn’t do the 850m). Is the burger jb4 avail for that? I’m looking for some more torque/hp.
I believe so but I'm not certain of your engine model number:


https://burgertuning.com/products/b58-jb4
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      04-04-2020, 02:47 PM   #14
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Thanks. I’ve been doing some research on this.

Looks like maybe a good first step is getting a new intake Like the Billet BMS Intake.. seems like I could do this myself as well. Any thoughts or opinions on if this is a good idea?
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      04-04-2020, 02:53 PM   #15
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Quote:
Originally Posted by gustovier View Post
Thanks. I’ve been doing some research on this.

Looks like maybe a good first step is getting a new intake Like the Billet BMS Intake.. seems like I could do this myself as well. Any thoughts or opinions on if this is a good idea?
The intake helps the car breathe more easily, can increase turbo spool up sounds and might add a little more power. For me, they've proven most useful in conjunction with an exhaust.

In your shoes, I'd start with the biggest bang for the buck—the JB + Bluetooth dongle. Then go from there. Doing it this way also allows you to measure the incremental gains. Grab a Dragy if you enjoy the numbers aspect and want to compete on a worldwide leaderboard with others that have similar or the same car.

Last edited by limeypride; 04-04-2020 at 05:23 PM..
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      04-04-2020, 03:08 PM   #16
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Quote:
Originally Posted by limeypride View Post
The intake helps the car breathe more easily, can increase turbo spool up sounds and add a little more power. For me, they've proven most useful in conjunction with an exhaust.

In your shoes, I'd start with the biggest bang for the buck—the JB + Bluetooth dongle. Then go from there. Doing it this way also allows you to measure the incremental gains. Grab a Dragy if you enjoy the numbers aspect and want to compete on a worldwide leaderboard with others that have similar or the same car.
Ok from the things I read seemed like doing the jb+ tune was really step 2 after getting a better intake not the other way around of getting the tune done first. I believe this was due to the added back pressure the tune can add, thus getting a better intake to relieve that pressure.
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      04-04-2020, 03:48 PM   #17
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cold air intake are almost always a step 1, followed by an exhaust and down pipes. step 3 is usually a piggy back tune or flash tune.
lowering springs and other mods usually follow. although I've seen a bunch of guys on here lower their rides, I can't imagine lowering the m850i or m8. it's already pretty low for me to get in and out; and going over speed bumps and street.
although if I was going to track it, I could see maybe an inch or two drop. I still think the m850i is pretty low down stock.
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      04-04-2020, 04:57 PM   #18
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Quote:
Originally Posted by tracythorne View Post
do those shift paddles replace or do they just fit over (in front or behind) the originals? how easy are they to install?
It replaces.
Never goes with stick-on.
I got a customer that have stick-on and it came off during light to light pull.

Quote:
Originally Posted by gustovier View Post

I have an 840i xdrive gran coupe (couldn't do the 850m). Is the burger jb4 avail for that? I'm looking for some more torque/hp.
All Piggyback tuners do have it, BMS, RaceChip, Dinan, and all do have it.
And B58 is such a strong motor, you can get more gain than the N63tu motor in the M550/M850 or any current 50i variant.
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      04-04-2020, 05:00 PM   #19
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Quote:
Originally Posted by Resjudicata View Post
cold air intake are almost always a step 1, followed by an exhaust and down pipes. step 3 is usually a piggy back tune or flash tune.
lowering springs and other mods usually follow. although I've seen a bunch of guys on here lower their rides, I can't imagine lowering the m850i or m8. it's already pretty low for me to get in and out; and going over speed bumps and street.
although if I was going to track it, I could see maybe an inch or two drop. I still think the m850i is pretty low down stock.
Believe it or not, with the new air intake technology, the stock air filter is as good as any aftermarket unless you are pushing 50% more horsepower.

In my list, it is last on the list.

First would be tune, either piggyback or flash tune.
Then downpipe.
Exhaust is right before intake because it gives you more sound than actual power gain.
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      04-04-2020, 05:14 PM   #20
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Quote:
Originally Posted by Resjudicata View Post
cold air intake are almost always a step 1, followed by an exhaust and down pipes. step 3 is usually a piggy back tune or flash tune.
lowering springs and other mods usually follow. although I've seen a bunch of guys on here lower their rides, I can't imagine lowering the m850i or m8. it's already pretty low for me to get in and out; and going over speed bumps and street.
although if I was going to track it, I could see maybe an inch or two drop. I still think the m850i is pretty low down stock.
Hmmm, I disagree--where do you get 'most' from or that folks do the intake first?

In my case, this is my 10th S63-derived BMW M-car. I've bolted on an aftermarket intake only once and an exhaust only once (same car). The intake helps for sound... and seems to work best in conjunction with more free-flowing exhausts like I mentioned... but the car I did both on doesn't compete with my more modern ones but it was an F06 M6 Comp GC and they're showing their age a bit.

I'd argue that most Racechip (another piggyback) and JB4 customers are looking for a plug'n'play solution that doesn't instantaneously invalidate their drivetrain warranty. I imagine I've helped 50+ JB folks over the years and the vast majority modified nothing else... me included on 9 BMW M-cars.

Granted, I'm a little different since I don't keep cars long but the results speak for themselves: 30,000 miles across two F90 Comps achieving consistent low 10.3s in the 1/4 mile and 0-60mph below 2.6s (2.57 being a repeated personal best).

If you want to open things up a bit, then I'm fully supportive of getting an intake+exhaust. However, I am in complete disagreement that it's either necessary or normal for piggyback tuning.

If we take my current M8, for example, it has only a JB4. It's already running 2.59s to 60 (per Dragy as in all cases above) and a 10.5s 1/4 mile on farm roads--I'm still tinkering but I've no doubt she'll match my 2020 F90 M5 Comp once I nail the setup (and it stops raining).

I'd do the JB4 first--see how it feels. Then the intake, see the difference--determine for yourself. Or do the intake and exhaust together but, either way, give yourself a baseline to compare the bolt-ons against.

Last edited by limeypride; 04-04-2020 at 05:34 PM..
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      04-04-2020, 05:26 PM   #21
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Quote:
Originally Posted by Resjudicata View Post
<snipped> I can't imagine lowering the m850i or m8. it's already pretty low for me to get in and out; and going over speed bumps and street.
although if I was going to track it, I could see maybe an inch or two drop. I still think the m850i is pretty low down stock.
LOL--the M8 looks *absurd* at factory ride height. I've never ever modified a new M-car as quickly as I did this one--it wasn't even 24 hours old before I had Ben ripping those factory springs out. Lowering them is virtually mandatory for me.

Guess which one is stock.
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      04-04-2020, 11:37 PM   #22
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Quote:
Originally Posted by r33_RGSport View Post
Quote:
Originally Posted by Resjudicata View Post
cold air intake are almost always a step 1, followed by an exhaust and down pipes. step 3 is usually a piggy back tune or flash tune.
lowering springs and other mods usually follow. although I've seen a bunch of guys on here lower their rides, I can't imagine lowering the m850i or m8. it's already pretty low for me to get in and out; and going over speed bumps and street.
although if I was going to track it, I could see maybe an inch or two drop. I still think the m850i is pretty low down stock.
Believe it or not, with the new air intake technology, the stock air filter is as good as any aftermarket unless you are pushing 50% more horsepower.

In my list, it is last on the list.

First would be tune, either piggyback or flash tune.
Then downpipe.
Exhaust is right before intake because it gives you more sound than actual power gain.
.[/QUOTE]
Believe it or not, with the new air intake technology, the stock air filter is as good as any aftermarket unless you are pushing 50% more horsepower.

In my list, it is last on the list.

First would be tune, either piggyback or flash tune.
Then downpipe.
Exhaust is right before intake because it gives you more sound than actual power gain.[/QUOTE]

wow, that's cool. I stand corrected, thanks! I haven't done any racing or modified any car in a decade, so I'm not up to date. and with the Coronavirus and a my kids, I doubt I'll get back but I can always dream.
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