How to install downpipes on a F80 M3 or F82 M4 S55! The mods have begun on our F80 M3, in this video I show you all how to remove your stock downpipes as well as your stock exhaust and install aftermarket catless downpipes. This video goes over the following removal and install processes: strut bar, airbox , charge pipes, exhaust, downpipe, and underbody panels. I have linked all of the parts down below as well as the torque specs that you may need. Make sure you subscribe and hit the bell notification to get notified of our next video reviewing our full stainless steel valvetronic exhaust and downpipe review and install video. Thanks for watching!

Parts Links:

Turbo to Downpipe Gasket:
https://click.linksynergy.com/deeplin...

Downpipe to Section 1 Gasket:
https://click.linksynergy.com/deeplin...

Downpipe Flat Flange:
https://click.linksynergy.com/deeplin...

Downpipe Flange Torx Screw:
https://click.linksynergy.com/deeplin...

Turbo to Downpipe V-Band Clamp:
https://click.linksynergy.com/deeplin...

Downpipe to Section 1 Copper Nuts:
https://click.linksynergy.com/deeplin...

Stone Exhaust Cat-Back System:
https://click.linksynergy.com/deeplin...

Stone Exhaust Downpipes:
https://stoneexhausts.com/products/st...

Torque Specs:

Downpipe Bolt/Nut Torque Specs: 14 ft lb
V-Band Clamp Bolt Torque Specs: 10 ft lb
O2 Sensor Torque: 37 ft lb
Engine Splash Shield (M10 16mm Bolts) : 41 ft lb + 90 degrees



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0:00 Intro
0:04 Overview
0:57 Plastic Cover Removal
1:33 Carbon Fiber Strut Bar Removal
2:04 M3 Engine Vanity Cover Removal
2:15 Airbox and MAF Sensor Removal
3:25 Charge Pipes Removal
5:18 Engine Plastic Cover Removal
5:55 Primary O2 Sensor Disconnect
8:38 Overview of Exhaust Removal
10:15 Quick Tip for Rusty Bolts
10:38 Removing Cat Back Exhaust
10:58 Downpipe Flange Removal
12:31 Lower Covers and Engine Splash Shield Removal
13:29 Disconnecting Secondary O2 Sensors
14:32 Downpipe Removal Overview
16:34 Downpipe Brackets and V-Band Clamp
19:34 Transferring O2 Sensors
20:15 Changing Turbo Gaskets
20:47 Installing New Downpipes
22:09 New Downpipe Gaskets
22:40 Installing Catback Exhaust
23:57 Routing O2 Sensors
25:18 Routing Primary O2 Sensors
27:18 Putting Everything Back Together
27:42 Charge Pipes Install
28:47 Airbox Install
32:18 Conclusion