H-Gear Pro-Line exhaust manifold 4-2-1 2.5'' (64mm) stainless steel (Honda Accord 03-07 2.4)

The H-Gear header is a popular upgrade for Accord CL9 and CM2 owners regarded as being the best value aftermarket header that still retains a flexi section, allowing for some freedom of movement. Many other solid headers can eventually crack due to the continual stress of the engine bucking backwards and forwards. One solution is to use stiffer engine mounts, or a torque damper to limit the engine's movement - the other solution is to buy a header with a proper exhaust flexi in the first place. H-Gear exhaust manifold fabrication is stellar, expect a quality product at a good price.

H-Gear headers and exhaust systems are manufactured using CNC machined flanges and mandrel bent T-304 stainless steel tubing. All headers have precision fit merge collectors and all joints are TIG welded for durability and appearance. All mufflers are polished stainless steel with a polished stainless steel resonated tip and have been tuned to give a deep aggressive exhaust note, without being too loud.

Often these manfolds have only a end pipe/collector diameter of 50.8mm. This new design has a 64mm collector/flex pipe and 64mm 3 bolt flange, which makes it one of the only ones of the market with such a large bore pipe. Still works with an OEM catalytic or catalytic converter.


-4-2-1 High Performance Racing Spec Design
-Improved flow by enlarged piping (2.5''/64mm collector/flex pipe design with 2.5''/64mm flange)
-Flex Pipe Insertion for Flexibility and Extra Durability
-O2 Sensor Bung Insertion and high quality Metal Gaskets/fire rings Included
-TIG Welded CNC Machine Flange

This is the re-designed version of the previous V1 version and has improved flow, higher quality gaskets and lager bore piping/flange.