These Trick Flow® 4.6L twin 57mm upper hardware kits include all of the hardware that you need for your Trick Flow® manifold. Kits include: * Two 1/8 NPT x 3/8 barb fittings * One 3/8 NPT x 3/8 barb fitting * One 3/8 NPT x 5/8 barb fitting * One M8 x 1.25 x 80mm hex flange bolt * Three M8 x 1.25 x 40mm studs * Three M8 x 1.25 12 pt. nuts * Four M6 x 1.0 x 25mm hex flange bolts * Two M8 x 1.25 x 25mm socket head cap screws * One IAC wire extension kit (TFS-5182WIAC)