Hey guys, I am planning to purchase the Turner Motorsport Conforti Performance Chip ($209) but tonight on eBay I found the Dinan chip for sale for around $50 (some upwards of $100). Here is one of the Dinan chips for sale on eBay right now: http://cgi.ebay.com/ebaymotors/BMW-D-nan-Chip-E28-E30-528-325-84-87-ecu-021-027-/230594263931?pt=Motors_Car_Truck_Parts_Accessories&hash=item35b07d3b7b. I hear over and over again buy Conforti over Dinan but at a difference of almost $150, is it really worth it? Most of the posts were referring to purchasing the chip directly from Dinan and Dinan being overpriced... Thanks guys.