Triple R Composites Seat Leon MK2 Cupra/FR Finned Diffuser
Give your Seat Leon MK2 Cupra/FR a sharper, more aggressive rear end with this finned rear diffuser. The deep fins break up the flat rear bumper and add a subtle motorsport style look.
This diffuser is a direct replacement for the factory rear diffuser panel. It is made from GRP (glass reinforced plastic) – a strong, lightweight plastic with glass fibres for extra toughness – and finished in gloss black to match most factory trims and styling parts.
- Direct replacement for the OEM rear diffuser panel
- Gloss black finish for a clean OEM+ look
- Finned design for a more dynamic, performance style rear end
- GRP construction for strength and low weight
- Designed for Seat Leon MK2 FR Pre Facelift models (2005-2009)
Use the vehicle lookup on our site or check the Vehicle Fitment tab for full details before ordering.
Fitment and installation
This diffuser fits Seat Leon MK2 Cupra/FR models from 2005 to 2012 and replaces the standard rear bumper diffuser panel.
Please note: Some trimming and sanding is usually required to achieve the best fit.
Fitting tips:
1 – Sand the mounting clips on the diffuser to around 4 mm thickness so they locate more easily.
2 – Lightly lubricate the clip areas on the car’s bumper (for example with WD40) to help the clips slide in.
3 – Use a blunt screwdriver or similar tool to gently prise open the clip holes on the bumper. The plastic will flex and return to shape once the diffuser is in place.
4 – Start fitting from one end of the diffuser. As more clips go in it may feel tighter – get one person pushing from behind the bumper while another pushes the diffuser into place from the outside.
5 – If clips do not seem to line up, lift the diffuser upwards while pushing it into the bumper. Work across the diffuser and clip them in one by one. It may look like it does not fit at first, but it will pull into position as more clips engage.
Test fit the diffuser before painting or final fixing to confirm alignment and clip engagement.
Triple R Composites UK Authorised Installer & Distributor.




