G05
BMW X5
7.9KVIEWS
28REPLIES
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16ACTIVE PEOPLE
05-14-2026LAST POST
03-07-2025
I’m surprised it got that high wow
03-07-2025
Good to see someone modifying an X5! Ive similar setup on my 540i but looking into future upgrade potential for my x5 45e GC+ is a full replacement turbo or just a core upgrade?
03-07-2025
Currently about 50 whp behind you and smoked a transmission and upgraded to trans from 2020 X3M. That was 3 weeks ago and last night exploded rear differential when I hit it at a 8-10mph roll. How are you not destroying parts launching your car? I am looking to see if I can upgrade to M differentials to handle the power before we turn it up more.

Update: More like 5 whp behind you!
03-21-2025
buddyboy wrote
Good to see someone modifying an X5! Ive similar setup on my 540i but looking into future upgrade potential for my x5 45e GC+ is a full replacement turbo or just a core upgrade?
warranty is up after today, i think we're going to see more folks modding these pretty soon.
01-07-2026
skip.metro wrote
Currently about 50 whp behind you and smoked a transmission and upgraded to trans from 2020 X3M. That was 3 weeks ago and last night exploded rear differential when I hit it at a 8-10mph roll. How are you not destroying parts launching your car? I am looking to see if I can upgrade to M differentials to handle the power before we turn it up more.

Update: More like 5 whp behind you!
Does the 8HP76 bolt up without any adapters? Were you just on the stock open diff?
Itslouiev wrote
warranty is up after today, i think we're going to see more folks modding these pretty soon.
I hope so. The Gen2 B58 has so much more to give than the stock 335 hp tune. Also, the tuning community has found ways to unlock the DME without sending to FEMTO, we'll definitely see a lot more people tinkering.
05-12-2026
OP, hows the car holding up? thinking of upgrading to pure turbo 800 + hpfp. anyone else running bigger turbos in here?
05-14-2026
Jerezblack.m3 wrote
OP, hows the car holding up? thinking of upgrading to pure turbo 800 + hpfp. anyone else running bigger turbos in here?
Damn Man, that is alot of power you are going to be laying down. That X3 will be an animal. Go for it! :thumbsup: