Dinan 21mm Adjustable Rear Anti-Roll Bar | E60 M5 · E63 · E64 | M6 5.0L V10 [S85] E85 · E86 Z4 30i 3.0L I6 [N52] it does not block exhaust

it does not block exhaust flow as the resonator is only around the downpipe

This A4 test pipe is a powerful and easy bolt-on alternative to a full downpipe exhaust upgrade

and will yield less than ideal performance

The design features twin 89mm (3

Dinan 21mm Adjustable Rear Anti-Roll Bar | E60 M5 · E63 · E64 | M6 5.0L V10 [S85] E85 · E86 Z4 30i 3.0L I6 [N52] it does not block exhaustAlmost all street cars come from the manufacturer with an anti roll bar as it is a common part of modern suspension systems. However, they are designed to be overly soft for maximum comfort. An anti roll bar does exactly what it says by reducing body roll in all situations. Every Dinan tuned anti roll bar is built and tuned specifically for each BMW chassis. Lowering the amount of body roll keeps your BMW more level than stock (while still allowing