aFe Twisted Steel Exhaust Manifold for 2001-2004 GM Trucks (48-34009-PK)

Product Description

Construction: These unique up pipes are constructed of 2" mandrel-bent 304 stainless steel tubing with a .120" wall for strength and durability. 2" Inner Liner Flex Pipes: The down-pipes utilizes heavy duty 2" flex tubes with internal inner liner. Leak-Free Seal: High quality 3/8" thick flanges are used for a complete 360 degree sealing surface. Machined Ports: These manifolds have both the inlet and the outlet ports machined to match the factory gaskets. This allows for maximum flow, without compromising gasket performance. Auxiliary Ports: An Exhaust Gas Temperature (EGT) probe port is incorporated into each manifold for easy installation of gauges or testing equipment. There are three additional cast in bosses provided to allow for alternate testing points. Hassle-Free Installation: These manifolds are compatible with the stock up-pipes, which allows the manifolds to be installed without having to remove the turbocharger down-pipe or the up-pipes. Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.

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advanced FLOW engineering (aFe Power) is a premier designer and manufacturer of automotive performance upgrade systems and components. Current product lines include cold air intake systems, high performance direct fit and racing air filters, exhaust systems, intercoolers, turbochargers, electronic programmers, diesel fuel systems, throttle body spacers, and more. aFe is passionate about providing the most compelling, innovative, and highest performing products that are designed, built and tested in the USA. aFe was founded in 1999 and has headquarters and manufacturing facilities in Corona, California, USA. In the fall of 2007, aFe added diesel fluid filters for diesel applications. In 2008, aFe introduced the Aries 1 and Aries 2 filters and intakes for popular powersport applications. 2009 saw the release of the BladeRunner intercooler Intercooler for diesel applications as well as the Takeda USA intake line for sport compacts. In 2012 aFe Power entered into the differential cover and transmission pan market. 2011 saw the release of a new turbocharger and Scorcher Programmer product lines.