OBD2 Manifolds on OBD1 Exhaust System

[KI4UJO]

Since my car originally was m50 swapped, I used the OBD1 cast manifolds. After buying an m52 (m50 had a cracked block), I decided that I would like to use the OBD2 shorty headers. However, I was wondering if anyone knew if they would bolt right up to my existing exhaust, as it is built for the cast manifolds? It's a lot easier to know in advance then to have to change them in the car.

thanks in advance

[tytypetersen]

Yup they'll bolt right up!

[e304lyfe]

Yup they'll bolt right up!

not necessarily true. if your obd1 cast manifolds came from an e34 then your exhaust will not fit without modification.

[2mAn]

That's what I have on mine . I have to put the OBD1exhaust manifoldson my car when I go to the BAR so I'll be dealing with swapping them soon.

The last time I looked, Real OEM actually shows the same part # for the E36 & E34 manifolds.

[e304lyfe]

The last time I looked, Real OEM actually shows the same part # for the E36 & E34 manifolds.

e36 and e34 rear manifold is the same (11621716733), but front have different part numbers.

e34: 11621716730
e36: 11621716736

[2mAn]

Thanks for clearing that up