[oregondonor]

I've been doing a little digging and it appears the rotors are the same from the 40i to the 30i.

If this is the case it would seem and easy swap of the calipers to get M Sport brakes on a 30i.

Any thoughts on this? TBH, I don't see a lot of 30i guys on here. Kinda make me feel like the red headed step child.

[brettl]

I’m a 30i guy. We’re around. I’m not surprised, you can get the 30i with the better brakes. Smallest wheels you can get on the 30 or the 40 are 18 inch. I think their might be some coding that’s needs to be done if you switch out the calipers. Question, are the rear brakes on a m40 vs a 30i the same, calipers and all?

[Sportstick]

Originally Posted by oregondonor

I've been doing a little digging and it appears the rotors are the same from the 40i to the 30i.

If this is the case it would seem and easy swap of the calipers to get M Sport brakes on a 30i.

Any thoughts on this? TBH, I don't see a lot of 30i guys on here. Kinda make me feel like the red headed step child.

We're here. I have MSport brakes via the Dynamic Handling Package but (correct me if I'm wrong anyone), I believe the rotor is also a wider diameter.

[oregondonor]

Here is what I have found...

[oregondonor]

Originally Posted by Sportstick

We're here. I have MSport brakes via the Dynamic Handling Package but (correct me if I'm wrong anyone), I believe the rotor is also a wider diameter.

All of the brake parts seem interchangeable across all X3 models.

I just don't know what coding would need to be done. They are just calipers.

[oregondonor]

My front rotor...

[g11hoonigan]

Originally Posted by oregondonor

I've been doing a little digging and it appears the rotors are the same from the 40i to the 30i.

If this is the case it would seem and easy swap of the calipers to get M Sport brakes on a 30i.

Any thoughts on this? TBH, I don't see a lot of 30i guys on here. Kinda make me feel like the red headed step child.

Hold fire!

Yes, rotors will fit both models BUT they are not the same.

Standard front rotors are 330mm while sport rotors are 348mm. Thickness aren't the same either. You will need to get the complete set - rotors, pads and calipers (and maybe caliper bolts, need to check).

That said, it'll still be an easy swap as long as you have all the parts you need, not just calipers.

[oregondonor]

Originally Posted by g11hoonigan

Hold fire!

Yes, rotors will fit both models BUT they are not the same.

Standard front rotors are 330mm while sport rotors are 348mm. Thickness aren't the same either. You will need to get the complete set - rotors, pads and calipers (and maybe caliper bolts, need to check).

That said, it'll still be an easy swap as long as you have all the parts you need, not just calipers.

Where do you find this info? I had to pull my wheel just to get the part number for my 30i. It would be nice to get a parts list together. Or maybe find a totaled M40i?

Do you agree with no coding necessary?

[g11hoonigan]

Originally Posted by oregondonor

Where do you find this info? I had to pull my wheel just to get the part number for my 30i. It would be nice to get a parts list together. Or maybe find a totaled M40i?

Do you agree with no coding necessary?

Quite a few places - your image above, brembo site, rockauto, etc.

If you're going to upgrade, why not get the biggest kit you can afford? Look at the other G-series models, like m550i, 750i, x3 M, etc. should bolt right up with minimal adjustment - like dust shield.

[oregondonor]

Originally Posted by g11hoonigan

Quite a few places - your image above, brembo site, rockauto, etc.

If you're going to upgrade, why not get the biggest kit you can afford? Look at the other G-series models, like m550i, 750i, x3 M, etc. should bolt right up with minimal adjustment - like dust shield.

To be totally honest I just want nicer brakes that are on there. The M Sport brakes would be fine.

Looks like 330x24 for standard rotors, 348x36 for M Sport.

I think it will be costly. Sad that the Dynamic Handling Package is only $1400.

looks like $1200 - 1300 just for the calipers.

Thoughts?

[lfdal54]

Originally Posted by oregondonor

To be totally honest I just want nicer brakes that are on there. The M Sport brakes would be fine.

Looks like 330x24 for standard rotors, 348x36 for M Sport.

I think it will be costly. Sad that the Dynamic Handling Package is only $1400.

looks like $1200 - 1300 just for the calipers.

Thoughts?

It all comes down to "Is it worth it to you?". If so, go for it.

[ASAP]

It seems it should be doable...

This is exactly what actually bothers me with BMW and these half ass "M" sport cars... what does an M40i really get you OVER a 30i? A different engine, mirrors and larger brake calipers... but you can option a near identical suspension, you get identical brake rotors and they just cheap out on the little things. It kind of blows my mind a car with 260 hp and 380 hp can have identical suspensions and brake rotors lol... This is why next time, it's real M for me again or nothing.

[Sportstick]

Originally Posted by ASAP

It seems it should be doable...

This is exactly what actually bothers me with BMW and these half ass "M" sport cars... what does an M40i really get you OVER a 30i? A different engine, mirrors and larger brake calipers... but you can option a near identical suspension, you get identical brake rotors and they just cheap out on the little things. It kind of blows my mind a car with 260 hp and 380 hp can have identical suspensions and brake rotors lol... This is why next time, it's real M for me again or nothing.

I get your frustration from your side of the equation. From the 30i side, my thought is with the MSport package, the Dynamic Handling Package for adaptive suspension and MSport brakes, and Shadowline trim, I get a lot of what makes the vehicle "M-fun", creating essentially an M30i, but without two extra cylinders that I don't need and don't want the trade-offs for. I did the same when I spec'd out my 2 Series you see in the signature.

[ASAP]

Originally Posted by Sportstick

I get your frustration from your side of the equation. From the 30i side, my thought is with the MSport package, the Dynamic Handling Package for adaptive suspension and MSport brakes, and Shadowline trim, I get a lot of what makes the vehicle "M-fun", creating essentially an M30i, but without two extra cylinders that I don't need and don't want the trade-offs for. I did the same when I spec'd out my 2 Series you see in the signature.

Exactly... this all started back in 2007 when the m sport pack came out and it was identical to the sport pack on a 328i lol... less the gaudy m badging.

[Sportstick]

Originally Posted by ASAP

Exactly... this all started back in 2007 when the m sport pack came out and it was identical to the sport pack on a 328i lol... less the gaudy m badging.

If the 30i was truly restricted to being a "base" car without those options, I wonder how many would choose M40i instead to get that content, enrichening the BMWAG model production mix, or stay with the base with BMWAG losing the chance for all that option margin. By creating all this content for the 30i, it does make it easier for those on the fence to stay with the 30i.

For my prior 330i GT, I had to buy from inventory due to a quick need and chose the basic car without any of what I could add this time to create my "M30i" as I didn't want the 6.

[g11hoonigan]

Originally Posted by oregondonor

To be totally honest I just want nicer brakes that are on there. The M Sport brakes would be fine.

Looks like 330x24 for standard rotors, 348x36 for M Sport.

I think it will be costly. Sad that the Dynamic Handling Package is only $1400.

looks like $1200 - 1300 just for the calipers.

Thoughts?

I hear ya. Yeah, brakes aren't cheap and you'd still need new set of rotors regardless. I was thinking that if you buy just the front calipers, you'd need to have a matching paint for the rear. Since you'd be painting anyway and used prices (ebay?) would probably be close, it might be worth to go larger.

It's been a while since I last checked the used prices so apologies if my estimates are off. But keep in mind the M sport brakes on X3 is just the 'standard' non-painted brakes on 7-series. It's also the same as in the GR Supra, so try looking if anyone from that camp is selling. And those would be red though, not sure if you have any preference in color.

[oregondonor]

Originally Posted by Sportstick

I get your frustration from your side of the equation. From the 30i side, my thought is with the MSport package, the Dynamic Handling Package for adaptive suspension and MSport brakes, and Shadowline trim, I get a lot of what makes the vehicle "M-fun", creating essentially an M30i, but without two extra cylinders that I don't need and don't want the trade-offs for. I did the same when I spec'd out my 2 Series you see in the signature.

If I could have found a 30i like this I would have jumped on it. My problem is I don't like taking the hit for a new build. This 2023 30i we just purchased was pretty close except no Dynamic Handling Package for $45k with 4,000 mile on it. Seemed like a pretty good deal with a sticker of $60,920.

[oregondonor]

Originally Posted by g11hoonigan

I hear ya. Yeah, brakes aren't cheap and you'd still need new set of rotors regardless. I was thinking that if you buy just the front calipers, you'd need to have a matching paint for the rear. Since you'd be painting anyway and used prices (ebay?) would probably be close, it might be worth to go larger.

It's been a while since I last checked the used prices so apologies if my estimates are off. But keep in mind the M sport brakes on X3 is just the 'standard' non-painted brakes on 7-series. It's also the same as in the GR Supra, so try looking if anyone from that camp is selling. And those would be red though, not sure if you have any preference in color.

I think the red goes good with the Dark Graphite Metallic.

Maybe a salvage yard has a totaled M40i?

[strohw]

Originally Posted by ASAP

It seems it should be doable...

This is exactly what actually bothers me with BMW and these half ass "M" sport cars... what does an M40i really get you OVER a 30i? A different engine, mirrors and larger brake calipers... but you can option a near identical suspension, you get identical brake rotors and they just cheap out on the little things. It kind of blows my mind a car with 260 hp and 380 hp can have identical suspensions and brake rotors lol... This is why next time, it's real M for me again or nothing.

I don't quite get what you're trying to say. You're paying $7k to get a i6 vs an i4 plus a few very minor items. It is literally no different than MANY other manufacturers who have different trim levels for vehicles with different engines. Sometimes they offer the other items in that trim level with upgraded engine to lower trim levels and sometimes they don't. You could replace that "M" you just quoted with SS, S, GT, R/T, V, etc and the exact same would hold true.

[ASAP]

Originally Posted by strohw

I don't quite get what you're trying to say. You're paying $7k to get a i6 vs an i4 plus a few very minor items. It is literally no different than MANY other manufacturers who have different trim levels for vehicles with different engines. Sometimes they offer the other items in that trim level with upgraded engine to lower trim levels and sometimes they don't. You could replace that "M" you just quoted with SS, S, GT, R/T, V, etc and the exact same would hold true.

what I am saying is they COULD have removed the M part of it all which stands for marketing and just called it an i40.. but then the marketing wouldn't have been as solid... its true for all the others you named as well

[bocabimmer]

Originally Posted by ASAP

what I am saying is they COULD have removed the M part of it all which stands for marketing and just called it an i40.. but then the marketing wouldn't have been as solid... its true for all the others you named as well

I agree entirely. My friend has an F30 340i. The next year, the G series 3er with the same i6 B58 is now the M340. Same idea, new marketing.

What made the true M cars special was the engine, diffs, suspension, and (to a much lesser extent) the visual cues.

[strohw]

Originally Posted by bocabimmer

I agree entirely. My friend has an F30 340i. The next year, the G series 3er with the same i6 B58 is now the M340. Same idea, new marketing.

While you're correct in that the marketing changed, I feel like you're implying that they didn't do the same things in the F series. They had the M Performance package and M Sport packages. All they did was make options standard and call it M340.

They've been doing the exact same things for a decade now, with badges and names. It's not any different now then it was then. They still slapped little M's on the other model lines 10 years ago.