Silicon intake boot

Sajk · Post by **Sajk** » Sat Jul 08, 2023 8:14 am

Does anybody know who makes a boot that fits our cars? I believe the e46 m3 one does not fit.

paddy wright · Post by **paddy wright** » Sat Jul 08, 2023 4:06 pm

You can still get them from BMW?

j3nks79 · Post by **j3nks79** » Sat Jul 08, 2023 8:35 pm

Moshimoto
https://www.ebay.co.uk/itm/231364897191 ... media=COPY

Post by **srhutch** » Sat Jul 08, 2023 11:32 pm

Sajk wrote: ↑Sat Jul 08, 2023 8:14 am Does anybody know who makes a boot that fits our cars? I believe the e46 m3 one does not fit.

Check the part number on realoem.com it will confirm what it fits.

Sajk · Post by **Sajk** » Sun Jul 09, 2023 2:47 pm

Thanks guys. Looking for a silicon one.

@j3nks79 that Mishimoto link you posted seems to be for e46 m3 not a z4m? Are you sure it fits?

j3nks79 · Post by **j3nks79** » Sun Jul 09, 2023 3:24 pm

Sajk wrote: ↑Sun Jul 09, 2023 2:47 pm Thanks guys. Looking for a silicon one.

@j3nks79 that Mishimoto link you posted seems to be for e46 m3 not a z4m? Are you sure it fits?

I can’t see why it wouldn’t.
Maybe message the seller to confirm

///MC · Post by **///MC** » Mon Jul 10, 2023 9:56 pm

Rogue Engineering just released one, mine is on order.
https://www.rogueengineering.com/Rogue- ... p_405.html

The e46 m3 one does NOT fit the z4m as ours has an extra hose/connector.

grannyknot · Post by **grannyknot** » Mon Jul 10, 2023 10:11 pm

///MC wrote: ↑Mon Jul 10, 2023 9:56 pm Rogue Engineering just released one, mine is on order.
https://www.rogueengineering.com/Rogue- ... p_405.html

The e46 m3 one does NOT fit the z4m as ours has an extra hose/connector.

And the Z4M intake elbow is more like a right angle, whereas, the one for the M3 has a wider angle.

Sajk · Post by **Sajk** » Tue Jul 11, 2023 1:23 pm

Thanks guys

Dubbedown · Post by **Dubbedown** » Fri Jul 14, 2023 3:03 pm

I’d be surprised if this made a real difference on non-turbo cars. In “theory” it helps with flow but I doubt it makes any real world difference.

mmm-five · Post by **mmm-five** » Fri Jul 14, 2023 4:54 pm

Dubbedown wrote: ↑Fri Jul 14, 2023 3:03 pm I’d be surprised if this made a real difference on non-turbo cars. In “theory” it helps with flow but I doubt it makes any real world difference.

Maybe it's just to replace an expensive OE BMW pipe that splits?

Sajk · Post by **Sajk** » Fri Jul 14, 2023 5:54 pm

The theory makes sense to me which is why I am interested in trying it but the cynic in me says no way power is left on the table for what would be a cheap part at scale. So i dont believe turner and bimmerworld claims of 7 to 10 hp or whatever. Also some additional vibration must be transfered vs the rubber flex pipe.

Dubbedown · Post by **Dubbedown** » Fri Jul 14, 2023 6:51 pm

mmm-five wrote: ↑Fri Jul 14, 2023 4:54 pm
Dubbedown wrote: ↑Fri Jul 14, 2023 3:03 pm I’d be surprised if this made a real difference on non-turbo cars. In “theory” it helps with flow but I doubt it makes any real world difference.
Maybe it's just to replace an expensive OE BMW pipe that splits?

How many times have you seen the oe s54 pipe split?

mmm-five · Post by **mmm-five** » Fri Jul 14, 2023 8:18 pm

Dubbedown wrote: ↑Fri Jul 14, 2023 6:51 pm
mmm-five wrote: ↑Fri Jul 14, 2023 4:54 pm
Dubbedown wrote: ↑Fri Jul 14, 2023 3:03 pm I’d be surprised if this made a real difference on non-turbo cars. In “theory” it helps with flow but I doubt it makes any real world difference.
Maybe it's just to replace an expensive OE BMW pipe that splits?
How many times have you seen the oe s54 pipe split?

Only once on mine. But I replaced it with an OE one

Did look for a full Samco kit when I did my cooling system refresh many years back, but there wasn’t an off-the-shelf kit available, so I didn’t bother.

Dubbedown · Post by **Dubbedown** » Fri Jul 14, 2023 9:57 pm

mmm-five wrote: ↑Fri Jul 14, 2023 8:18 pm
Dubbedown wrote: ↑Fri Jul 14, 2023 6:51 pm
mmm-five wrote: ↑Fri Jul 14, 2023 4:54 pm Maybe it's just to replace an expensive OE BMW pipe that splits?
How many times have you seen the oe s54 pipe split?
Only once on mine. But I replaced it with an OE one

Did look for a full Samco kit when I did my cooling system refresh many years back, but there wasn’t an off-the-shelf kit available, so I didn’t bother.

I stand corrected then. What was the root cause?

Z4-forum.com

Z4-forum.com