Yeah that 1 is cheaper!Why would it fail MOT? And is t a lot of work to install/take it off?
You're aware that's also a decat pipe and will fail an MOT? If you're okay with that then 3 inch is fine.. but i'd go for this one insteadhttp://cgi.ebay.co.uk/VW-GOLF-4-1-8T-GTI-20V-TURBO-DECAT-DOWNPIPE-DOWN-PIPE_W0QQitemZ120446307135QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item1c0b28cb3f&_trksid=p3286.c0.m14