3% offCompareFits your vehicle 4" Aluminized Cat Back Single | 2001-2007 GM 2500/3500 6.6L DURAMAX w/OEM 4 Bolt Flange (FLO-PRO) $740.00 $717.80
3% offCompareFits your vehicle 4" Aluminized Downpipe Back Duals | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Aluminized, With Muffler $1160.00 $1125.20
3% offCompareFits your vehicle 4" Aluminized Downpipe Back Single No Muffler| 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Aluminized, Without Muffler $690.00 $669.30
3% offCompareFits your vehicle 4" Aluminized Downpipe Back Single | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Aluminized, With Muffler $760.00 $737.20
3% offCompareFits your vehicle 4" Stainless Downpipe Back Single With Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Stainless, With Muffler $1110.00 $1076.70
3% offCompareFits your vehicle 4" Stainless Downpipe Back Single Without Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Stainless, Without Muffler $1050.00 $1018.50
3% offCompareFits your vehicle 5" Aluminized Downpipe Back Single NO Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Aluminized, Without Muffler $890.00 $863.30
3% offCompareFits your vehicle 5" Aluminized Downpipe Back Single With Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Aluminized, With Muffler $1020.00 $989.40
3% offCompareFits your vehicle 5" Stainless Downpipe Back Single NO Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Stainless, Without Muffler $1120.00 $1086.40
3% offCompareFits your vehicle 5" Stainless Downpipe Back Single With Muffler | 2001-2004.5 GM 2500/3500 6.6L DURAMAX (FLO-PRO) Stainless, With Muffler $1360.00 $1319.20