Thinking about styling your 911 but not sure what it'll actually cost once splitter, diffuser and side skirts are all added up? Here's a straight breakdown of what a Porsche 911 body kit runs in the UK in 2026, and what changes the price.
What Drives the Price
- Generation — 991 (2011–2019) and 992 (2019–present) have different bumper and arch profiles, so parts are cut per generation and aren't interchangeable
- Material — ABS is the budget-friendly option; carbon fibre costs more but saves weight and gives the finish most 911 owners are actually after
- Coverage — a front splitter alone is the cheapest entry point; a full kit (splitter, side skirts, rear diffuser) costs more but transforms the car front to back rather than in isolation
Typical UK Price Ranges (2026)
- Front splitter only — the most common starting point for 911 owners easing into styling changes
- Side skirts — usually priced similarly to a splitter, sold as a pair
- Rear diffuser — typically the most expensive single part given its size and the precision needed for a factory-look fit
- Full kit (all three) — buying as a set is usually better value than buying each part separately over time, and guarantees the parts are designed to match visually
Carbon fibre parts sit above ABS across the board — expect a meaningful premium for the weight saving and finish, particularly on the diffuser given its size.
Fitting Costs
Most 911 splitters and skirts are designed for a straightforward bolt-on fit using the included fixings, so many owners fit these themselves in an afternoon. A diffuser can be more involved depending on your exhaust configuration, and painting/colour-matching ABS parts is an additional cost carbon fibre buyers skip entirely since it's usually left in a gloss or matte weave finish.
Is It Worth It?
A 911's proportions are already close to right from the factory, which is exactly why subtle, well-fitted styling parts make a bigger visual difference here than on most cars — a factory-look splitter and diffuser sharpen the stance without looking like an aftermarket add-on. It's a car where fit and finish matter more than on most, so it's worth checking reviews and fitment notes closely before ordering.
Shop Porsche 911 Parts
Browse our Porsche 911 collection for splitters, diffusers and side skirts across 991 and 992 generations, in both ABS and carbon fibre.