i still dont understand how everyone is really worried about like $200-$300 difference in product that is total probably $2500 for all work including install when it would be much more costly later down the road if it broke.
if you going with helical why not spend the money for the quaife and not worry about much? now if this thing was different and had some special feature and was cheaper that they guarantee then I might consider but there is only so much you can do with helical type.
if you cant afford $300 then this car might not be the car you should be modifying.
Space Gray l 6MT l OSG LSD w/ VAC Race Diff Cover l Cobb e30 l Morr vs8.2 l UUC SSK w/ DSSR l VSRF Catless Dps l RPI Intercooler l CDV Removed l HID AE 8000k l ETS Catback l AST 5200 w/ Vorshlag Camber Plates l ER Dual Oil Coolers l Rear Camber and Toe Arms l K&N Drop In l Solid Tranny/Diff/Subframe Bushings l Bridgestone RE-11