[Stove]

New BMW owner here! I was wondering if anyone could give some advice/info on brake/caliper options for a 2020 330i xdrive with m sport package. I really want to upgrade to the bigger m calipers (red or blue). Just not sure where to begin. Any feedback would be greatly appreciated, thanks!

Current setup pictured.

[DarrylW]

There are a couple other threads on this. I’m looking to do the same. There are different size rotors depending weather you have the base setup, M sport brakes or the M performance brakes. I’m still working out the sizes myself so I cant give you a lot of details yet.
I have the same setup as you do. I’m looking to swap the red calipers from my wife's 530 to my 330 and put blue ones on her car

[Chubbiejones]

Originally Posted by Stove

New BMW owner here! I was wondering if anyone could give some advice/info on brake/caliper options for a 2020 330i xdrive with m sport package. I really want to upgrade to the bigger m calipers (red or blue). Just not sure where to begin. Any feedback would be greatly appreciated, thanks!

Current setup pictured.

Originally Posted by DarrylW

There are a couple other threads on this. I'm looking to do the same. There are different size rotors depending weather you have the base setup, M sport brakes or the M performance brakes. I'm still working out the sizes myself so I cant give you a lot of details yet.
I have the same setup as you do. I'm looking to swap the red calipers from my wife's 530 to my 330 and put blue ones on her car

For your reading pleasure:

https://www.bimmerworld.com/M-Sport-Brakes-G20-G22/

I personally have the performance brakes and I after discussions between individuals who have the upgraded sport brakes the difference is negligible for the cost; I am waiting for aftermarket options.

[helmet91]

Originally Posted by Chubbiejones

For your reading pleasure:

https://www.bimmerworld.com/M-Sport-Brakes-G20-G22/

I personally have the performance brakes and I after discussions between individuals who have the upgraded sport brakes the difference is negligible for the cost; I am waiting for aftermarket options.

Those of us with the crappy 1-piston stock brakes however... The M-Performance is a HUGE upgrade (330x24 to 374x36 on the front rotors; 1 to 4 pistons on the calipers).

I'm getting ready just to pull the trigger on the M-Performance setup. To source the M-Sport setup piecemeal from the dealer actually ends up costing quite a bit more. There is the used route, but I'm not a big fan.

[Two3Series858]

helmet91 it's been a minute, but did u go with the M-Performance setup? Do u like it? You mentioned it costs more to just go up to the M-Sport upgrade(?)... so its actually twice the benefit to get the better brakes at a slightly cheaper cost? Even if it prices out a JUUUUUST a little higher, that large caliper with the slotted rotors in the front would make it worth it IMO.

Seriously considering this route with $3K to play with

[helmet91]

I actually ended up getting an essentially new set of M-Sport brakes off of an M340 with around 500 miles it it… for $1500. Threw in some Turner stainless lines and Motul 660.

The setup is fantastic. It worked amazing on the Ring with no fade the last 1/3 of the lap like I had on the junk stock brakes.

I’ll probably get some Endless pads next spring and go with ECS discs when the time comes.

[Two3Series858]

Yeah I saw looking into other threads. I've decided to go with just the M-Sport route also. Sweet deal. I'm hoping to score something within the next few months.

[kilabot29]

helmet91 hey man I’m planning to go that route as well, I found use m-sport brake from 2021 M340i on eBay and I wonder how’s the installation of the m-sport brake into factory floating brake on 330i? Also did you put stainless steel brake lines as well as the coding of the m-sport brake?

[helmet91]

I bought Turner’s steel lines and Motul RBF660 fluid to go along with the new brakes.

As I only have street parking, I farmed this job out to an independent BMW shop in town. They did the install and reprogramming. Seemed to be a pretty easy job for them.

[kilabot29]

helmet91 did you upgrade your brake booster? I know the booster from m-sport factory brake is different from factory standard brake.

[helmet91]

No upgrade needed on a US-spec 330i to move up to the M-Sport brakes based on my research… or last 18 months with the car, to include Autobahn and Nuerburgring use.

It’s only needed to use with the M-Performance 374mm upgrade.

[kilabot29]

helmet91 what rotors and pads are you using? The m-sport brake that I found on eBay didn’t come with rotors and pads.

[helmet91]

Just the OEM for now.

Will probably move up the ECS discs at some point. Jury is still out on pads because as it sits right now, it appears that iSweep is the only company making pads for the LCI.

[kilabot29]

helmet91 what year is your car btw?

[helmet91]

My car is a 2019, but I ended up with the brakes off of an LCI M340i. The LCI front calipers have a different pin location so the previous brake pads do not work.

[kilabot29]

helmet91 well I found the kit just want to make sure that will fit on my 2021 330iX. The brake kit comes with brake pads but not rotors.
https://www.ebay.com/itm/33553760528...mis&media=COPY

[helmet91]

I don't see why those wouldn't fit your car.

[kilabot29]

helmet91 just making sure the m-sport brake kit swap is plug&play the rotors and caliper, what about the dust shield that came with it no issues as well? Also did you use the brake pad sensor from your car to the m-sport brake pads?

[helmet91]

Your stock pads, rotors and dust shields won’t work with the M-Sport upgrade. They’re all completely different. I’m pretty sure the sensors are the same.

The setup I bought had everything, so I didn’t have to reuse anything.