- 7 Inch Western Star 4900 Heritage OEM Style Elbow Exhaust KitStarting At$2,552.33DF-KWSH-705052CP-TECH97 Inch Western Star 4900 Heritage OEM Style Elbow Exhaust KitStarting At$2,552.33DF-KWSH-705052CP-MITER7 Inch Western Star 4900 Heritage OEM Style Elbow Exhaust KitStarting At$2,552.33DF-KWSH-705052CP-STRT7 Inch Western Star 4900/Constellation Exhaust Kit 1996-2000Starting At$2,552.33DF-KWSC-705052CP-MITER7 Inch Western Star 4900/Constellation Exhaust Kit 1996-2000Starting At$2,552.33DF-KWSC-705052CP-STRT7 Inch Western Star 4900/Constellation Exhaust Kit 1996-2000Starting At$2,552.33DF-KWSC-705052CP-TECH97 Inch Western Star 4900/Constellation Exhaust Kit 2000-NewerStarting At$2,718.16DF-KWSFN-705052CP-MITER7 Inch Western Star 4900/Constellation Exhaust Kit 2000-NewerStarting At$2,718.16DF-KWSFN-705052CP-STRT7 Inch Western Star 4900/Constellation Exhaust Kit 2000-NewerStarting At$2,718.16DF-KWSFN-705052CP-TECH97 Inch Western Star 4900/Stratosphere Exhaust Kit 2002-2007Starting At$2,740.82DF-KWSFN-705052CP-1-MITER7 Inch Western Star 4900/Stratosphere Exhaust Kit 2002-2007Starting At$2,740.82DF-KWSFN-705052CP-1-STRT7 Inch Western Star 4900/Stratosphere Exhaust Kit 2002-2007Starting At$2,740.82DF-KWSFN-705052CP-1-TECH97 Inch Western Star LowMax Flat Top Cab Exhaust Kit 2002-2006Starting At$3,302.17DF-KWSLM-705052CP-MITER7 Inch Western Star LowMax Flat Top Cab Exhaust Kit 2002-2006Starting At$3,302.17DF-KWSLM-705052CP-STRT