Stainless Works Long Tube Headers

Please note: We do not sell long tube headers.
vortec 8100 8.1l stainless works long tube headers
01-03 Chevy/GM Truck-8.1L - $920
  • 2001-2003 Chevy/GM Truck-8.1L
  • 2" Primary Tubes
  • 3" Collector
  • Uses Factory Headpipes & Catalytic Converters
  • Fits: Sierra 3/4-Ton, Silverado 3/4-Ton
  • Buy These Headers Here
vortec 8100 8.1l stainless works long tube headers
04-06 Chevy/GM Truck-8.1L - $920
  • 2004-2006 Chevy/GM Truck-8.1L
  • 2" Primary Tubes
  • 3" Collector
  • Uses Factory Headpipes & Catalytic Converters
  • Fits: Sierra 3/4-Ton, Silverado 3/4-Ton
  • Buy These Headers Here

CMI 496 Long Tube Headers

Please note: We do not sell marine headers.

The CMI 496 Sport Tube Performance Package delivers improved performance across the entire operating range of any 496 engine package. When applied to a stock 496 engine, this package will help to increase horsepower, boost mid-range torque, improve fuel economy across the power curve and enhance the engine's overall running quality. The package comes complete with all required mounting hardware plus CMI's exclusive 496 Relocation Kit, which includes all brackets, hoses and hardware needed to make relocation of select engine components easier.

cmi marine long tube headers
CMI 496 Sport Tube Headers - $4795

Stock Manifolds Are Restrictive

Stock exhaust manifolds reduce exhaust flow, reducing power and economy. Headers promote better scavenging, improving exhaust flow, increasing efficiency and power output. Our performance kits increase your engine's ability to breathe and will show maximum gains when coupled with long tube headers.

Integrated Collector Merge Spike

stainless works merge spike improved airflow

Too much back-pressure can make it difficult for your engine to expel exhaust gas, limiting engine power. Stainless Works long tube headers feature integrated merge spikes which reduce back-pressure and turbulence within the collector. Inspired by race technology and performance dyno testing, the Stainless Works merge spike was developed to direct airflow towards the center of the collector, which promotes scavenging and further improves power gains from these long tube headers.

"Header-Proof" Ceramic Spark Plugs

vortec 8.1l 496cid ceramic spark plug wires for engines with headers Ceramic Spark Plug Wires - $340

8.1L engines with short and long tube headers routinely melt stock plug wires and even performance spark plug boots. Ceramic spark plug wires eliminate burnt spark plug boots in boats, trucks, hot rods and RVs. If you've had this problem before or don't want to worry about it in the future, check out our 45 degree ceramic plug boots which are rated to withstand extreme temperatures up to 2000°F!

Ceramic Spark Plug Wires