# Exhaust system, remove and install

Support exhaust system |
Remove nuts from header flange. |
Loosen 13mm bolts on brackets and remove rubber hangers from rear cross member |
Remove muffler bracket and lower exhaust from car.

### Installation

Replace gasket and nuts at manifold flange. Use copper nuts.
Install manifold nuts and muffler bracket, and tighten to correct torque before installing other mounts.
Correctly positioned exhaust must have tailpipes in center of opening in rear valance. |
Install rubber hanger and bracket at rear sub-frame and position bracket so that rubber hanger has slight tension only.

### Torques

Pipe to manifold | : | Step 1, 30 Nm (22 ft lbs.) Step 2, 50 Nm (26 ft lbs.)
Muffler brackets | : | 14 Nm ( 10 ft lbs.)
Hanger bracket to rear sub-frame | : | 22 Nm (16 ft lbs.)

E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson