Maxton Design Rear Diffuser + Milltek RS Upgrade Kit for Ford Fiesta MK8 ST & MK8.5 ST (2018-2022)
The Maxton Design Rear Diffuser + Milltek RS Upgrade Kit is specifically designed for the Ford Fiesta MK8 ST & MK8.5 ST models with the Milltek sport exhaust system already installed. This kit will transform the look of your car to the RS style.
Kit Includes:
- Rear diffuser
- Milltek RS upgrade extension kit
Milltek Description:
Every Milltek system is meticulously crafted in the UK using aerospace grade type 304, non-magnetic stainless steel. This high-quality material ensures durability, resistance to discoloration, and optimal performance. The mandrel bending technique guarantees constant radius bends for improved gasflow, while carefully enlarged bore diameters enhance mid-range torque without sacrificing performance. Milltek exhaust systems undergo extensive acoustic development to deliver a sporty and crisp tone without any NVH, drone, or cabin resonance.
Please note that we recommend professional installation of the exhaust system.
Rear Diffuser Description:
This rear diffuser is a replacement for the original diffuser.
Characteristics of Rear Diffuser:
- Adds aesthetic value
- Lightweight and offers flexibility
- Made from ABS plastic, a widely used material in the automotive industry
More Information about Rear Diffuser:
- No additional work is required to finish the product
- The product will arrive with a protective film
- Removal of the protective film will void any returns, only remove once you are certain the product will fit
- We cannot be held responsible for incorrect installation or use of this product
- Please compare the vehicle in the listing photos and title to your own to ensure correct fitment
- We advise trusting installation to a qualified professional unless you are confident following the provided fitting manual
- This product has been TUV MATERIALGUTACHTEN certified
- The removal of the holographic verification sticker will void a return, this identifies the item as an official and authentic Maxton Design product, removal is at buyer’s risk
This product is made of ABS plastic and is available in three surface look options: textured, gloss black, and carbon look.
This product has been TUV MATERIALGUTACHTEN certified (TUV certify for material).
Choosing the right Maxton kit for you!
It is important for customers to check the specification of their own vehicle against the product description, and if their vehicle has an existing sports trim level, body kit or factory enhancement that may cause it to look different from other similar models. For example: Volkswagen R-Line, BMW M-Power/M-Pack, Audi S-Line, Ford ST-Line, Merc AMG-Line, Seat FR. These kits will not fit models that don't meet these specifications.
Returning a Maxton Product
Purchased the incorrect kit for your vehicle? Or not sure you like the surface finish when it arrives? No problem!
Maxton Design products are eligible for return if the product has not been fitted, drilled, modified or damaged in any other way and still has the protective factory film intact. Unfortunately, there are no exceptions. Please see our Terms & Conditions for more information.
Installation & Fitting
Instructions & Guides
Maxton Design provide either an online reference (below) or printed instructions with their products, we can't stress enough how important it is to follow these guidelines. Not only does this create a safe, aesthetically well fitted product, but it increases the longevity and lifespan of the kit.
Neither Progressive Parts nor Maxton Design will be unable to provide and support or warranty for products fitted incorrectly. For example, front splitters require the front bumper to be removed, without doing so the bolts will be incorrectly positioned and may not be able to cope with the down-force exerted on it. Straying from the guidelines in this manner must be done so at the owners risk.
Fibreglass & "Non-Prepped" Products
By adding these products to your basket you are agreeing to the below statement.
All Maxton Design Fibreglass products including certain bumpers, spoilers, spoiler extensions and skirts will require “prep” before installing.
These are not a simple 'ready to fit' modification. In transit, the items may get chipped or marked and as such prior to painting it is important you understand that the parts may require filling, sanding and repairing (defined "prep") prior to paint being applied, which can be undertaken by any reputable body shop at minimal cost.
Return requests based on not anticipating the definition above are not accepted, please be aware you have agreed to this statement and the definition of “prep” work required prior to purchasing.
Product images shown for sale often indicate a finished product, the colour shown on the vehicle is for illustration purposes.
Fitting Manuals
Please note, Maxton Design products are only available for UK shipping.
Including Northern Ireland, Scottish Highlands and Channel Isles. Delivery fees apply.