My VW dealer (great guy, Mike Simm, Pulman Durham) mentioned VWR Performance Upgrade Packs (I test drove a Gti mark VI with the upgrade) - not necessary for me but you guys might be interested, even if only as a comparison. Expensive compared to Blue Fin - Power increase to 250bhp, torque increase to 380Nm, Performance VWR Rear Exhaust ('R' branded tailpipes) and Performance VWR Air Filter - £1,499 fully fitted. Also, VWR Sport Spring Set and 20mm lower ride height - £599 fully fitted - fitted by VW Retailer.