Rear Diffuser Replacement

dmeadows013 · 01-16-2018, 07:00 PM

I just bought the quad tipped rear diffuser and it’s currently getting painted, so I’m just waiting on that to install my new exhaust system. Is it possible/feasible to replace the rear diffuser without removing the wheels and the whole bumper? If not, how much would it generally cost for a shop to do it for me, and could I use the quad tipped diffuser with my single tips until I get a chance to get my new system installed?

1hprush · 01-16-2018, 09:12 PM

Welcome! Whether you have a shop do the install or you do it, the rear bumper will need to be removed. You also can run your dual tip exhaust with the quad diffuser, although it might look a bit odd, until you get your quad exhaust. You can do a search on removing the rear fascia if you decide to tackle this project, most shops will charge you an hourly rate, a reputable one will have a schematic of the rear bumper removal and should be able to give you a fairly accurate quote. Good Luck!

Start The Machine · 01-16-2018, 10:21 PM

You can do it both ways. Here are the links on how to remove it.

https://youtu.be/h22plWwhsNA

https://youtu.be/7vb6s9lDcb0

Jessyb13 · 01-22-2018, 05:40 AM

Quote:

Originally Posted by 1hprush

Welcome! Whether you have a shop do the install or you do it, the rear bumper will need to be removed. You also can run your dual tip exhaust with the quad diffuser, although it might look a bit odd, until you get your quad exhaust. You can do a search on removing the rear fascia if you decide to tackle this project, most shops will charge you an hourly rate, a reputable one will have a schematic of the rear bumper removal and should be able to give you a fairly accurate quote. Good Luck!

I have a lift, I did it without removing the rear tires or bumper, so if you have access to one you’re good. If not you it’ll just be annoying on the ground

01-16-2018, 07:00 PM	#1
dmeadows013 Drives: 2017 50th Anniversary V6 Join Date: Jun 2017 Location: Bay Area Posts: 3	Rear Diffuser Replacement I just bought the quad tipped rear diffuser and it’s currently getting painted, so I’m just waiting on that to install my new exhaust system. Is it possible/feasible to replace the rear diffuser without removing the wheels and the whole bumper? If not, how much would it generally cost for a shop to do it for me, and could I use the quad tipped diffuser with my single tips until I get a chance to get my new system installed?

01-16-2018, 10:21 PM	#3
Start The Machine Drives: 2016 M6 2.0T Join Date: Nov 2016 Location: Gig Harbor, WA Posts: 839	You can do it both ways. Here are the links on how to remove it. https://youtu.be/h22plWwhsNA https://youtu.be/7vb6s9lDcb0 __________________ RS Package, HD Cooling Package, Brembo 6 Piston Front Brakes, SRP Racing Pedals, Soler Performance Throttle Controller, Dyno Tuned by Trifecta, Velossa Tech Ram Air, Mishimoto Intake, aFe Air Filter, Mishimoto Charge Pipes, ZZP 67mm Throttle Body, Trifecta T40 Stage 2 Turbo, JacFab Recirculation Valve, PTP Turbo Blanket, ZZP Catted Downpipe, Mishimoto Pro Cat-Back Quad Tip Exhaust, Mishimoto Catch Cans, Mishimoto Coolant Reservoir Tank, GM SEMA Grill, Ikon Motorsports Front Fascia Extension, Ikon Motorsports 1LE Spoiler, American Authority ZL1 Side Skirts, AMPP Quad Tip Rear Valance

01-16-2018, 09:12 PM	#2
1hprush 2018 ZL1 1LE Drives: 2018 ZL1 1LE Join Date: Aug 2017 Location: Westfield, IN Posts: 1,010	Welcome! Whether you have a shop do the install or you do it, the rear bumper will need to be removed. You also can run your dual tip exhaust with the quad diffuser, although it might look a bit odd, until you get your quad exhaust. You can do a search on removing the rear fascia if you decide to tackle this project, most shops will charge you an hourly rate, a reputable one will have a schematic of the rear bumper removal and should be able to give you a fairly accurate quote. Good Luck!

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