Active Autowerke G8x M3 M4 Valved Rear Axle-back Exhaust - Step By Step Install!

Mike @ XPH

Platinum Vendor
Nov 18, 2016
Las Vegas
Mod #8

This is the third and final video of the G82 BMW M4 exhaust install. In this video, we install the Active Autowerke axle back. In previous videos, we had installed the Active Autowerke catted downpipes with GESI cats and the Active Autowerke X-pipe.

We start this video by installing the stock downpipes instead of the previous Active Autowerke ones. We did so because the cold start was too loud. If you are looking for the most aggressive sound, you can use all three, and you will be pleased with the outcome.

If you are looking for a more balanced sound suitable for a daily driver, we recommend either axle-back + midpipe or axle-back + catted downpipes.

Downpipe install

Midpipe install