07-13-2018, 05:05 PM | #3 |
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07-14-2018, 11:11 AM | #5 |
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Checkout Diffsonline. They give you options to configure the diff the way you want. I went with a Wavetrac and have been very happy with it. You can also elect to drop the final drive ratio if you are so inclined. Once you install the LSD you send them your stock unit in exchange for a core deposit. Really simple. Also, Turner Motorsport offers a similar service.
Edit: Checkout this post. Recommendations from a bunch of folks. https://www.2addicts.com/forums/show....php?t=1390045
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2017 BMW M240i (Sold)
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WolfGTI688.50 |
07-17-2018, 10:22 PM | #6 | |
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JC |
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08-13-2018, 02:42 PM | #7 |
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Guys, for the B58 engines I heard there was some coding to be done when installing the M Diff... does anyone know what should be coded since I am doing it in my friends shop.
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08-13-2018, 04:40 PM | #8 |
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There is no coding required for the MP LSD.
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My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
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08-13-2018, 05:13 PM | #9 |
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08-13-2018, 06:30 PM | #10 |
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Love it and I don't track my car. The car should come with it from the factory.
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My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
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08-15-2018, 11:42 AM | #11 |
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Agreed - anything with an M designation - be it M lite (M240i/M235i) or the full M (M2/M3/M4/M5 etc.) should come with LSD standard. Bmw could differentiate between M lite and full M with a mechanical diff and M-diff which can vary lockup and slip electronically.
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08-15-2018, 06:38 PM | #12 | |
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Dan has built clutch-based diffs for my track and race cars, and I recommend diffsonline highly. For sure check them out. The helical gear-based Wavetrac that Dan built for me has made a big difference in my M240i, and I'm looking forward to what it can do for me at Mid-Ohio's handling track this weekend.
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2017 M240i: 23.6K, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; GTechniq Crystal Serum Ultra Ceramic; Suntek PPF |
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08-16-2018, 08:45 AM | #13 | |
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Also, I know if I get the BMW M LSD in there my warranty is still fine. What about with a Wavetrac or similar? Obviously the diff wouldn't be covered by BMW but would it be likely for BMW to deny ANY drivetrain warranty claim if using a non BMW diff? Thx |
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08-20-2018, 04:16 PM | #14 |
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Can someone explain the real world everyday advantages of having the LSD. I know what it is and how it works but for daily driving and weekend canyon runs what will it do to my drive? Will I be able to tell its even there? Is it more of a track thing? Its a pricey add on and wanna get some opinions.Thanks
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08-20-2018, 04:45 PM | #15 | ||
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However, I do know this - your car will do a significantly better job of putting the power down to both wheels with a limited slip diff. Where it's made a difference for me is coming out of corners, whether it's on a back road or exiting the Bus Stop at Watkins Glen. The car simply hooks up and goes. If you have a favorite corner where you're getting the most out of the car on exit, you will notice the difference after you install a LSD. Whether the cost and other issues are worth it is up to each driver. I got the Wavetrac based upon Dan's advice. I told him it was going into a street car that would see two or three track events each year, and he said the Wavetrac was the one to get. I assume if I'd told him it was for a race car that he would again have advised a clutch-based unit, but that's just an assumption. From my point of view, the advantage of the Wavetrac is that it doesn't require periodic rebuilds. I don't know the rebuild interval for the BMW clutch-based LSD, but I'm assuming the clutches do eventually need to be replaced. All of my clutch-based track/race LSDs eventually needed to be rebuilt; of course, they were seeing much more intense use than they would if they had been installed in a street car. As far as the OEM warranty goes, I don't really know what the situation is. Beyond possible issues with halfshafts (axles), I'm not sure what BMW could say a non-OEM diff did that caused damage to other parts of the car. I'm not suggesting that it's not an issue, but my guess is that a properly installed non-OEM diff is unlikely to result in a legitimately denied warranty claim when that claim is otherwise valid.
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2017 M240i: 23.6K, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; GTechniq Crystal Serum Ultra Ceramic; Suntek PPF |
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10-11-2018, 08:06 AM | #16 |
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I pulled the trigger on the Wavetrac in 3.08, it's a bit pricey but I've been a good boy :-) With new bearings $600, a core charge of $600 it worked out to $3,400 so minus the core it's more like $2800 but you'll spend $500 to get it installed.
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2017 M240i - BM3 Stage 2+ tune - Millway Camber plates - Dinan Midpipe - Dinan Intake - Wavetrac Diff - Bilstein B16 coilovers - Apex EC8's - Spool Ethanol sensor - TU Pump - Spec Stage 2+ clutch - E30 map - AutoTechnic Carbon fiber Trunk spoiler - RW Carbon diffuser - Front lip spoiler - Mirror caps.
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10-12-2018, 07:24 PM | #17 |
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You won’t regret it brother!
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04-16-2020, 02:59 PM | #18 |
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MP LSD
I think I met you a year ago at the Sebring get together. I am in Ft. Myers. I have a black M240i. I remember you car. I am thinking of getting a MP LSD. It sure is expensive at $2630 plus $699 install at MBW dealer. Do you think it is worth it? I do not track my car. Have you had any problems? Anything I should Know? What did your LSD costs? Thanks
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04-16-2020, 06:19 PM | #19 | |
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https://www.getbmwparts.com/oem-part...on-33108659987. Changing the diff out takes a while, but it isn't particularly complicated, so you might check for a qualified local BMW independent shop and see what they would charge you for installation. BIMRS.org is a good place to look for such a shop (https://www.bimrs.org/), although it looks like the closest to you is a couple of hours away. Still, it might be worth a call to get an alternative installation cost. As to whether or not it would be worth it, I'd say that if you don't track or autocross but you do enjoy exiting turns aggressively then it may be worth it to you. It can also make the car somewhat easier to manage on wet surfaces. It all depends upon how aggressively you drive the car - the more aggressively you drive, the more you'll enjoy and realize the benefits of an LSD.
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2017 M240i: 23.6K, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro; GTechniq Crystal Serum Ultra Ceramic; Suntek PPF |
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04-21-2020, 09:06 AM | #20 | |
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You will definitively feel the difference and I think it is worth it, but that is a personal, subjective opinion. The car feels more planted on corner exit and the DSC doesn't interfere as much. This is especially welcome on a tuned car with higher torque. I have not had any problems with it. Mine was cheaper than the prices you posted because I took advantage of a holiday sale that BMW had online and the service manager at Reeves Tampa gave me a good price on install. Diff was ~$1500 and install was ~$500. I think ~$3300 installed is high and may not be worth it to you. But, if you wait for a sale and negotiate a lower install price, I don't think you'd regret it.
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My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
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04-25-2020, 04:53 AM | #21 |
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Does anyone knows if it’s possible to put a M2 LSD on a M240i?
(I don’t have much knowledge about differentials and gearing, i just understand the differences between open and LSD, so I don’t know if it’s even possible) |
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04-26-2020, 05:19 PM | #22 | |
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But as you can buy many different flavours of mechanical LSD, why would you bother? |
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