[Three_thirty_I]

Originally Posted by Phil325i

Thanks. No, not heard while driving. And it can't be DISA flaps... because the 325i 3-litre doesn't have them - only the 330i.

The 330i has 2 DISA flaps, but the 325i should have 1 like the N52B25 - open to correction, but should be right.

The 325i should have the 2 stage intake which requires 1 DISA flap...