Hey guys I am thinking about getting a tanabe Racing Medallion Exhaust, cause the gains are only like .2 off from the TRD but my local shop now has a new special on these "Estelir Exhausts." They are a new company form japan supposedly and they claim it outputs more HP than the Tanabe and looks and sounds around the same meaning that has the same power as the TRD if not more. Have you guys heard of this? The Tanabe I can get for 500 and the Estelir for 475 at a promotion. What do you think i should go with? Any inputs would help. Thanks.