Fitting a Mercedes AMG Quad Pipe Rear Diffuser – W204 C-Class C250 C300 C350
In this video I show how to remove the original genuine Mercedes W204 rear bumper diffuser on the C250, C300, and C350, and replace it with a genuine W204 AMG quad pipe diffuser.
I walk through the removal process, fitting the new diffuser, and share a few important details I discovered along the way to help others avoid mistakes.
AMG diffuser used (fits perfectly on my C350):
https://www.ebay.co.uk/itm/401354544397
On my car, the diffuser was not held on with bolts, but with plastic scrivets. I used 8 mm scrivets, however in hindsight I feel 9 mm scrivets would be the ideal and perfect size for a tighter fit.
Exhaust tailpipes used:
https://www.ebay.co.uk/itm/265305580371
(Please double-check your own exhaust pipe sizes before ordering.)
A useful DIY guide if you’re looking to upgrade your W204 rear end to the AMG quad pipe look 👍