Bmw 328 throttle body converstion

[Baron_marc]

how hard is it to do?

[georgedawes_007]

Is that when you change the manifold for the one of a 325?

[Deano_BMW]

i dont think its that easy to do mate otherwise you'd hear of more conversions. Not saying it cant be done though, i know there are M3 TB conversions on the 328's

[sniff diesel]

Deano_BMW said:

i dont think its that easy to do mate otherwise you'd hear of more conversions. Not saying it cant be done though, i know there are M3 TB conversions on the 328's

There are loads of 328's converted to the 325 manifold and TB.

[B19GRR]

The typical option is to go with one of Alpina527's (look out for him on various beemer forums) ready made solutions, enlarged bore TB and modified x25 manifold so it's a plug and play. I'm currently talking to him about getting a set up for my 528 before I LPG it. Cost is in the region on £400 which is not unreasonable for the genuine power boost it offers - compared to a lame K&N cone for example

Cheers,
Rob

[Deano_BMW]

i thought he was talking about individual throttle bodies rather than single TB

[B19GRR]

Deano_BMW said:

i thought he was talking about individual throttle bodies rather than single TB

Hmmm good point. I'm thinking expensive for some reason! I suspect the ecu side of things will be the harder point that bolting on a new manifold.

Cheers,
Rob