Son estos:
H&R Sport Springs
Lowers 1.5 - 2.0 inches on average
Superb ride quality
H&R Sport Spring kits are our number one selling product. Enhance the look of your vehicle with a reduced fender well gap. H&R Sport Springs provide a lower center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle’s suspension, you cannot go wrong with installing sport springs. Fun to drive, H&R Sport Springs are the number one upgrade for your vehicle.
En este enlace son los segundos
http://www.hrsprings.com/products/springs/
Así quedaban en mi ex coche:

PRECIO: 40€ + envio
Interesados mandad mail a polotm arroba gti16.com
Un saludo
EDIT: Con el permiso de Taiman81, te enlazo un certificado de homologación genérico.
http://www.megaupload.com/?d=LEUA63FN