Just bought Rob GTI's Twintercooler as he's defected to the other side and it wouldn't fit his Edition 30 Golf. Downloaded fitting instructions from Forge website, thought "that doesn't look too hard" .............3 1/2 hours later................ 30 screws to get the bumper and undertray off, move horn brackets, move airtemp sensor, remove several plastic guides and ducts, drill holes to mount i/c, line up hoses, trim hoses, remove lower strengthener from inside bumper, reassemble............. Then found i/c hoses rub on chassis, make pads to protect, then found clips for honeycomb grille foul hoses, make pads to protect, enlarge hole for airtemp sensor, finally done! Also beware (as Rob found out, bless him) one of the screws for the undertray when put back in pierces the driver's side hose! However, what a difference! The car feels a lot more urgent now, pulls harder to the red line and seat of pants dyno backs up Forge's claim of around 10 bhp gain! Wasn't sure it would but there ya go...... !