CMST Tuning Rear Diffuser for Mercedes Benz CLA45 AMG CLA250 C117 Carbon Fiber/FRP

: AVAILABLE TO ORDER - PLEASE CALL FOR LEAD TIME

: CMST Tuning

$741.00 $841.00

Material/Pattern/Finish

QUESTIONS & ANSWERS

Ask a Question
  • Hi there Does this diffuser come with the tips also?

    Hi Mike. It does not come with the tips. You can use the the stock AMG tips. 
    We also recommend getting 4 of these these 2.5" PIPE TO 4" TIP from Ventus Veloce. The diffuer looks amazing with them. 

    https://performancespeedshop.com/collections/ventus-veloce/products/ventus-veloce-carbon-fiber-exhaust-tips?_pos=1&_sid=c0f965b45&_ss=r&variant=34413712965788

Category:

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Upgrade Your Mercedes Benz CLA45 AMG CLA250 C117 2014 2015 2016 2017 2018 2019 (fitment for CLA250 requires sport package bumper) with Aftermarket Parts - Rear Diffuser Carbon Fiber / FRP from CMST Tuning



 

Product Information

Vehicle Make Mercedes Benz
Vehicle Model & Chassis CLA45 AMG CLA250 C117
(fitment for CLA250 requires sport package bumper)
Vehicle Year 2014-2019
Vehicle Body Type 4 Door Sedan/Coupe
Brand CMST Tuning
Product Category Rear Diffuser
Installation Method Replacement with OEM mounting points, fasten clips with screws. (For best results, bumper removal recommended.)
Professional Installation Recommendation Professional installation recommended.
Installation Guide Call in for instructions.
Package Content Rear Diffuser x1 (1 pcs)
Material Options

FRP or Carbon:

FRP (Fiber Glass): a composite material comprised of carbon fiber reinforced polymers. FRP Part comes with primed finish ready to be sanded and painted.

Vacuumed Carbon:

Real Vacuumed Carbon Fiber with UV Protection Clearcoat

 

Carbon Pattern Options

Woven 3k(default option)

Woven Carbon Fiber (Standard 2x2 or 3k) - the most common carbon fiber weave. 2x2 weave woven carbon fiber is the default if listing does not specify the pattern. Woven 3K carbon fiber is a lightweight and high-strength material made from bundles of 3,000 carbon filaments (referred to as "3K") that are woven into a fabric pattern, typically in a twill or plain weave. It offers excellent tensile strength, stiffness, and durability while maintaining a sleek, smooth appearance with a distinctive checkerboard pattern.

 

Forged (20% extra charge, made to order) 

Forged carbon fiber - a composite material made from randomly arranged, short carbon fiber strands combined with resin and compressed in a mold. Forged carbon fiber offers greater design flexibility compared to 3K woven carbon fiber, as it can be molded into more complex shapes without compromising structural integrity. Its random fiber orientation reduces weak points caused by the directional patterns in 3K weaves, enhancing impact resistance. Additionally, it has a unique aesthetic appeal, with a marbled texture that stands out from the uniform weave of 3K carbon fiber.

 

Honeycomb (20% extra charge, made to order) 

Honeycomb carbon fiber - combines woven 3K carbon fiber layers with a lightweight honeycomb weave, creating a sandwich structure that offers exceptional stiffness-to-weight ratio. This configuration provides excellent rigidity, impact resistance, and thermal insulation, making it ideal for aerospace, automotive, and high-performance sporting applications. The honeycomb weave significantly reduces material weight while maintaining strength, making it a preferred choice for lightweight structural components.



*To place order for other bespoke or creative options, please email or call in.
Finish Options Gloss Finish (default option) / Matte Finish (10% extra charge, made to order) / FRP Unpainted Finish (default option)
Estimate Installation Hours 2.5 Hours
Additional Information 




About CMST Tuning



CMST Tuning uses Grade A one-piece carbon fiber sheets with a Fiberglass Reinforced Plastic (FRP) skeleton for strength and durability (except on dry carbon products, since it is not needed). Because CMST Tuning uses one-piece sheets, so you will not see any broken lines or patterns. Rather, all you will notice is just one big consistent weave pattern. In addition to this, all CMST Tuning products use a strong clear coat finish. Clear coats are shiny and durable, and they give you the nice "wet" look as opposed to a duller look from gel coats. Lastly, all of CMST Tuning's carbon sheets are built into the mold, so they do not break and split like the ones where carbon is only wrapped around the skeleton.


Important Information:


-All CMST Tuning products come with a 6-month limited clear coat warranty.
CMST Tuning Parts, unless stated otherwise, may require re-use of some factory parts for a complete installation (for example, trunk lids, hoods for some applications will require re-using the factory license plate garnish)
To avoid pre-mature aging, it is important to keep your carbon fiber product clean. Minimize exposure to the sun, and wax when necessary. This is especially important for dry carbon products, which are sold RAW and need immediate protection upon receipt.
-For hoods, for legal purpose you may need to purchase some hood pins to ensure your new hood stays closed during high-speed or aggressive driving, even if your CMST Tuning hood features built-in latches.
Professional installation is always recommended if you are unsure of your abilities (make sure they check for fitment before starting the install). In some cases, drilling may be required.
-CMST Tuning parts are either made as " Vacuumed " carbon fiber. Wet carbon fiber has a shiny finish and is smooth. or made as "Pre-preg" carbon fiber, is often more pricy but does have a better strength to weight ratio. Pre-preg carbon also has slightly better weave quality, and is less prone to very minor defects.
Carbon fiber doors are strictly for off road and track use only, due to possible safety issues.

 


Shipping & Handling Timeframe
Shipping time quoted in cart is estimated shipping time by shipping companies. Handling time varies from 1 to 7 business days. Out of stock items generally has manufacturing time of 4-6 weeks. Customers should contact Performance Speedshop for most accurate shipping timeline.

Shipping & Handling Charges
Shipping cost quoted on website by USPS, UPS and DHL reflects best estimate of shipping cost by said shipping companies. Additional shipping cost may be assessed to reflect accurate real world costs.
*Customers must provide commercial shipping address for oversized items which requires freight shipping.

International Orders
Customers are to be responsible for all local handling, local shipping, foreign shipping, foreign shipping, broker fees, custom duties, import tariffs, paperwork fees, VAT, tax, and any other shipping associated fees.


DOMESTIC ORDERS RETURN & EXCHANGE POLICY:

Return Periods:
-NEW PRODUCTS* - STORE CREDIT: 14 days from date of purchase
-SPECIAL ORDER ITEMS - REFUND / STORE CREDIT: 14 days from date of purchase (for factory defects / order errors by Performance Speedshop LLC ONLY)
-USED PRODUCTS† - STORE CREDIT: 14 days from date of purchase (for factory defects / order errors by Performance Speedshop LLC ONLY)

* new products must be in original, in new condition and must not have been installed previously † products that have been installed are classified as used

Return Fees and Shipping:
-NEW PRODUCTS* - CORRECT ITEM & FUNCTIONAL: 20% restocking fee + return shipping
-NEW PRODUCTS - CORRECT ITEM & DEFECTIVE: no fees + paid return shipping
-NEW PRODUCTS - INCORRECT ITEM (CUSTOMER ERROR): 20% restocking fee + return shipping
-NEW PRODUCTS - INCORRECT ITEM (Performance Speedshop LLC / VENDOR ERROR): no fees + paid return shipping
-SPECIAL ORDER ITEMS - DEFECTIVE / INCORRECT ITEM (Performance Speedshop LLC / VENDOR ERROR): no fees + paid return shipping
-USED PRODUCTS† - DEFECTIVE / INCORRECT ITEM (Performance Speedshop LLC / VENDOR ERROR): no fees + paid return shipping

* new products must be in original, in new condition and must not have been installed previously † products that have been installed are classified as used

Damaged Items and Lost Packages:
Please contact Performance Speedshop LLC within 2 days of receiving a physically damaged item.
Standard return & exchange procedures will be applied including paid return shipping, as well as a full refund (replacement and store credit are also available).
Items reported as damaged past the 2 days period will not be accepted.
Customers are responsible for their package once an item has been delivered.
Please ensure that the package is in a secured environment upon delivery.
You can also request signature delivery by contacting us.

*If you believe that your package has been lost, please check your tracking number as well as your local courier service. If you are still unable to locate your item, please contact us for further assistance.

*Shipping and handling fees are subject to change for special orders.

INTERNATIONAL ORDERS RETURN & EXCHANGE POLICY:

Return Periods:
-NEW PRODUCTS* - REFUND / STORE CREDIT: 14 days from date of purchase
-SPECIAL ORDER ITEMS - REFUND / STORE CREDIT: 14 days from date of purchase (for factory defects / order errors by Performance Speedshop LLC ONLY)
-USED PRODUCTS† - REFUND / STORE CREDIT: 14 days from date of purchase (for factory defects / order errors by Performance Speedshop LLC ONLY)

* new products must be in original, in new condition and must not have been installed previously † products that have been installed are classified as used

Return Fees and Shipping:
-NEW PRODUCTS* - CORRECT ITEM & FUNCTIONAL: 20% restocking fee + return shipping
-NEW PRODUCTS - CORRECT ITEM & DEFECTIVE: no fees + paid return shipping
-NEW PRODUCTS - INCORRECT ITEM (CUSTOMER ERROR): 20% restocking fee + return shipping
-NEW PRODUCTS - INCORRECT ITEM (Performance Speedshop LLC / VENDOR ERROR): no fees + paid return shipping
-SPECIAL ORDER ITEMS - DEFECTIVE / INCORRECT ITEM (Performance Speedshop LLC/ VENDOR ERROR): no fees + paid return shipping
-USED PRODUCTS† - DEFECTIVE / INCORRECT ITEM (Performance Speedshop LLC/ VENDOR ERROR): no fees + paid return shipping

* new products must be in original, in new condition and must not have been installed previously † products that have been installed are classified as used

Damaged Items and Lost Packages:
Please contact Performance Speedshop LLC within 3 days of receiving a physically damaged item.
Standard return & exchange procedures will be applied including paid return shipping, as well as a full refund (replacement and store credit are also available).
Items reported as damaged past the 3 day period will not be accepted.
International orders may experience unforeseen extended delivery timeframes due to elevated customs and logistics workloads.
International customers are also responsible for all local customs and port fees.
Customers are responsible for their package once an item has been delivered.
Please ensure that the package is in a secured environment upon delivery.
You can also request signature delivery by contacting us*.
If you believe that your package has been lost, please check your tracking number as well as your local courier service.
If you are still unable to locate your item, please contact us for further assistance.

*Shipping and handling fees are subject to change for special orders.
*5% transaction fees cannot be refunded.

CANCELLATION POLICY:
-IN STOCK ITEMS - 20% restocking fees applicable. 5% transaction fees cannot be refunded.
-MADE TO ORDER ITEMS (Manufacturing started) - 20% restocking fees applicable. 5% transaction fees cannot be refunded.
-MADE TO ORDER ITEMS (Manufacturing not yet started) - 5% transaction fees cannot be refunded.

*Shipping cost will be refunded less 5% transaction fees.

CMST Tuning Rear Diffuser for Mercedes Benz CLA45 AMG CLA250 C117 Carbon Fiber/FRP

$741.00 $841.00