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70-81 Firebird 326-455 Long Tube Blck Ctd ; Doug's Long Tube Header 70-81 Firebird 326-455 1 3/4" Primary 3" Collector Black Hi Temp Coated D570-B

63-91 GM Truck SBC Tri Y Silver Ctd ; Doug's Tri Y Header 63-91 GM Truck 265-400 SBC Non Cat, no EGR or A.I.R. 2 & 4 WD 1 5/8-2" Primary 2 1/2" Collector Silver Ceramic Coated D300Y

63-91 GM Truck SBC Tri Y Black Ctd ; Doug's Tri Y Header 63-91 GM Truck 265-400 SBC Non Cat, no EGR or A.I.R. 2 & 4 WD 1 5/8-2" Primary 2 1/2" Collector Black Hi Temp Coated D300Y-B

70-81 Firebird 455 HO Long Tube Slvr Ctd ; Doug's Long Tube Header 70-81 Firebird 455 W/HO/SD/Ram Air Heads only 1 7/8" Primary 3 1/2" Collector Silver Ceramic Coated D581

70-81 Firebird 455 HO Long Tube Blck Ctd ; Doug's Long Tube Header 70-81 Firebird 455 W/HO/SD/Ram Air Heads only 1 7/8" Primary 3 1/2" Collector Black Hi Temp Coated D581-B

68-72 Buick Long Tube Stainless; Doug's Long Tube Header 68-72 Buick 400-455 Buick V8 1 7/8" Primary 3" Collector 304 Stainless

63-91 GM Truck SBC Tri Y Stainless; Doug's Tri Y Header 63-91 GM Truck 265-400 SBC Non Cat, no EGR or A.I.R. 2 & 4 WD 1 5/8-2" Primary 2 1/2" Collector 304 Stainless

68-72 GTO 326-455 Long Tube Silver Ctd; Doug's Long Tube Header 68-72 GTO 326-455 W/O EGR/A.I.R. 1 3/4" Primary 3" Collector Silver Ceramic Coated D590

64-92 GM F, G, & A Body SBC Mid Length Stainless; Doug's Mid Length Header 64-92 GM F, G, & A Body 265-400 SBC Non Cat, no EGR or A.I.R. 1 5/8" Primary 2 1/2" Collector 304 Stainless

68-72 GTO 326-455 Long Tube Black Ctd; Doug's Long Tube Header 68-72 GTO 326-455 W/O EGR/A.I.R. 1 3/4" Primary 3" Collector Black Hi Temp Coated D590-B

64-77 GM F, G, & A Body BBC Mid Stainless; Doug's Mid Length Header 64-77 GM F, G, & A Body 396-502 BBC Non Cat, no EGR or A.I.R. 1 3/4" Primary 3" Collector 304 Stainless

58-64 Chevy 348-409 Tri Y Stainless; Doug's Tri Y Header 58-64 Chevy 348-409 W Block 1 3/4-2" Primary 2 1/2" Collector 304 Stainless