Inlet manifold change

[Siamanda]

Hi
Can any one tell me if it is worth changing the inlet manifold, on my 2.8 single vanos engine for a m50 manifold. I hear it increases the air flow, but dose increase your fuel consumption.
Also how can I tell if it has already been done by a previous owner. If I post some pics can someone help.

Thanks Simon

 

[Ashbandicoot]

comparison of the manifolds


Is it worth it? Yes definitely!

Ash

 

[Antm72]

A great conversion and makes a big difference to the over all driveability .Does it use more fuel?.. ..depends on how much you enjoy the gains

 

[Connor]

How easy is it to fit? Feel like treating the Zed now it has been a good BMW and passed the MOT.
Also is there any where that supplies a complete bolt on kit?

Connor.

 

[Ashbandicoot]

Ian / alpina527@aol.com is the best source IMO he machines everything required, to ensure the fuel rail is positioned correctly and a throttle body plate (no B&Q pipes involved) £410 for the manifold, bored throttle body and asc unit.



Ash

 

[Siamanda]

Looking at my inlet manifold it looks like the original one

can anyone confirm this

 

[Siamanda]

comparison of the manifolds
View attachment 18668

Is it worth it? Yes definitely!

Ash

Was it easy too fit