Throttle body adapter plate for M52TU to M54B25 manifold conversion. Suitable for:

E46 - 323i, 328i;
E39 - 523i, 528i double vanos
Z3 - 2.8 double vanos

This adapter plate is needed for fitting M52 double vanos throttle body on M54B25 (from 2.5 ltr double vanos 325i, 525i X3 2.5i) intake manifold. Comes with fitting hardware. This plate will not restrict air flow due to specially designed center hole.

Manifold conversion for these engines will give 10-15 bhp extra, no torque loss and a very strong top end as it lets the engine breathe much better up to redline.

M54B25 manifold/throttle body adapter plate - £24.99

Fast international postage via priority airmail (in business days):
UK           3-5
Germany  3-5
Other European countries 5-7
USA, Canada  10-15
Australia         12-15
Russia               5-10
Rest of the World 11-20

We have other BMW performance/spare parts for sale as well, so please check our shop!