Borla 2.25in Inlet 4in Round Rolled Angle Cut x 12in Long Embossed Exhaust Tip 1987-chevrolet-corvette-esi5336236 It means the bearing is

It means the bearing is machined with additional running clearance beyond the standard spec

which is a different size than the Standard (-STD) set

The HX part number denotes ACL's extra oil clearance version of this oversized main bearing set

The ACL 4B8296HXC-STD is a Standard Size High Performance rod bearing set for the Subaru EJ20/EJ22/EJ25 engine family

Year Make Model Submodel 1994-1996 Dodge Ram 1500 Base 1997-2001 Dodge Ram 1500 Laramie 1997 Dodge Ram 1500 LT 2001 Dodge Ram 1500 SLT 1997-2001 Dodge Ram 1500 Sport 1997-1998 Dodge Ram 1500 SS/T 5

Borla 2.25in Inlet 4in Round Rolled Angle Cut x 12in Long Embossed Exhaust Tip 1987-chevrolet-corvette-esi5336236 It means the bearing isBorla(r) premium quality exhaust tip features mirror polished Bright Chrome finish on high quality T 304 austenitic stainless steel, precision welds and distinctive styling. Embossed with Borla(r) logo. The perfect way to provide a custom look for your vehicle. Best of all, they are backed by Borla(r)'s Million Mile warranty.