Overview
Give your Porsche 991.1/991.2 2012-2018 a cleaner, more purposeful rear exit with this rear diffuser. The carbon fiber finish delivers a high-impact appearance upgrade grounded in the facts listed for this product.
Built with a durable Carbon fiber construction, finished in Carbon fiber.
Material & Finish
- Carbon Fiber with UV Protection Clearcoat
- FRP with Primed Black Finish
- *FRP is a composite material comprised of carbon fiber reinforced polymers. FRP option comes with primed finish ready to be sanded and painted.
- *Default prices for Carbon Fiber Parts Are for 3k (2x2) Woven Pattern Carbon Fiber with Gloss Clear Coat Finish.
Key features
-
cleaner rear exit aero design — cleaner rear exit aero
-
Carbon fiber — finish that pairs cleanly with factory paint and trim
-
Carbon fiber — lightweight motorsport material with a clear carbon weave look
-
Paint-ready option — can be left as finished or painted to match body color where noted
Fitment
Designed for the Porsche 991.1/991.2 2012-2018. Confirm your chassis code (991.1, 991.2), year range (2012-2018), facelift / bumper style before ordering; send a photo of the install area if you want a fitment check.
- Fits: Porsche 991.1/991.2 2012-2018 with the compatible factory mounting
- Confirm this is the correct rear diffuser for your bumper / chassis generation
- Variants: FRP, Partial Carbon Fiber, 991.1, 991.2
Specifications
| Part |
Rear Diffuser |
| Vehicle |
Porsche 991.1/991.2 2012-2018 |
| Material |
Carbon fiber |
| Finish |
Carbon fiber |
| Install |
Confirm install method for your chassis |
Why upgrade
The rear valance is a large flat area on many cars. A diffuser adds structure and exit-aero character to the Porsche 991.1/991.2 2012-2018 without requiring a full bumper replacement when fitment matches.
FAQ
Will this fit my Porsche?
It is made for the Porsche 991.1/991.2 2012-2018 (chassis cues: 991.1/991.2). Other generations use different geometry and will not fit — always match chassis code, year, and facelift / bumper style.
Is it real carbon fiber?
This version is listed as Carbon fiber. Material called out in the listing: Carbon fiber.
Does it replace the whole bumper?
Usually no — this is the listed rear diffuser only, not an entire vehicle reskin. It is intended to work with the OEM mounting concept when fitment matches.
Do I need a body shop to install it?
Many owners have a body shop or detailing shop handle the install so panel gaps and fasteners are set correctly. Experienced DIY installers can also complete straightforward direct-fit pieces with care and the right tools.
How can I confirm fitment before I buy?
Message CarGym with your model year, chassis code, 991.1/991.2, and a clear photo of the install area — we will confirm compatibility before you order.
Is it in stock?
This is made to order and takes 3-4 weeks to ship out after order confirmation.
Shop this CMST Carbon Fiber Rear Bumper w/ Diffuser for Porsche 991.1 991.2 GT2RS (2012-2018) at CarGym with worldwide shipping and payment in all major currencies.
