Its not a car its a
tax on love
Join Date: Apr 2007
Location: United Kingdom
County: West Yorkshire
Best of the lot is the BMC CDA airbox & filter, though not cheap. In general, changing for aftermarket filters is asking for MAF trouble. Classic problem on the V6 is airbox bolts rusting or shearing, this alloas crap into the air intake after the filter and then your looking at bye bye MAF time. If this has happened its worth the expense of the aftermarket boxes such as the BMC CDA. There is a noticeable performance increase too.
A lot of people kept destroying MAFs with both K&N and Autodelta filter kits (esp Autodelta) on the old Sportsalfa forum; no solid evidence of why, but it happened to enough people to put me off. When they switched to the BMC it never happene
Bear in mind this is all V6 related but i imagine same applies to the TS.
Ph2 GTV: Nuvola Blue, 3.2 engine, Alfatune map, Alfaholics exhaust, GTA 330mm Brakes, Tarox, Bilsteins, BMC CDA airbox, Q2 diff, GTA clutch & flywheel