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2001-03 Chevy/GMC 3/4 Ton Truck 8.1L, headers. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Features 2" primary tubes and 3" collectors, connects to factory head pipe and cats. Headers are fully TIG welded and back purged. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.
2001-03 Chevy/GMC 3/4 Ton Truck 8.1L, Headers with 304 stainless steel construction, tig welded for strength. Features 2" primary tubes and 2-17/20" Slip-fit collectors, connects to factory headpipe and cats.
2000-03 Chevy/GMC 3/4 Ton Truck 8.1L Long Tube headers. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Features 1-7/8" or 2" primary tubes and 3" collectors, connects to factory head pipe and cats. Headers are fully TIG welded and back purged. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.
Fitment Notes:
Features:
Installation Instructions .pdf (2mb)
Posted by Jesse Chitty on Feb 1st 2026
I've had these on my 01' 2500HD for over 10 years and 2 different engines and they are phenomenal, the highest quality, they flow very well, probably one of the best features is they don't leak, anywhere, not at the flange ir reducer. The price seems steep, but after 10 years they still look great. I won't but anything else.
Free U.S. standard shipping on qualifying orders $199+. Special order and made-to-order items can't be cancelled or refunded once ordered.
We carry 750,000+ parts, so we can probably still get it. Check the spelling, try the part number, or ask us.
Request this part Text us (833) 691-5717