was8v 0 Posted August 11, 2008 BMC DIA 85-150: D1 (mm) D2 (mm) H (mm) 85 150 220 These DIA induction kits appear to be pretty much the same as CDA filters, with plastic instead of carbon enclosures. A DIA can be had for £100 new, whereas a CDA is £150+ Listed on the BMC website right at the end on here: http://www.bmcairfilters.com/infoCDA.asp Has anyone on here used a DIA on their car? Granted it doesn't look as good, but if it performs the same it sounds like a good deal. For comparison, heres the drawing for a BMC CDA 85-150: D1 (mm) D2 (mm) L1 (mm) 85 150 200 Quote Share this post Link to post Share on other sites
dr_mat 0 Posted August 11, 2008 Hmm. £100 for a plastic tube is probably an even worse rip-off than £150 for a carbon fibre one.. Quote Share this post Link to post Share on other sites
was8v 0 Posted August 12, 2008 Hmm. £100 for a plastic tube is probably an even worse rip-off than £150 for a carbon fibre one.. Indeed, but the BMC CDA has shown proven gains by a few people on here, without the excessive noise of a k&n - which would need boxing in to prevent sucking up engine bay air. I suppose a length of soil pipe around a cone filter would have a similar effect :dorky: EDIT: The BMC claims to have a vortex effect too, and of course the carbon will be better at keeping heat out (material properties). Quote Share this post Link to post Share on other sites