Invidia [05-09 Legacy GT] Equal Length Race Header
Invidia's Equal Length Race Header for the 2005-2009 Subaru Legacy GT replaces the stock unequal-length manifold with an equal-length 4-2-1 design for increased horsepower, improved throttle response, and reduced turbo spool time. Built from fully polished SUS304 stainless steel with TIG welds and 3-layer tubing, with CNC-machined flanges for precise fitment. It works with your choice of stock or aftermarket up-pipe and fits OEM sensors and brackets. This is a racing product for off-road/competition use only.
- Invidia part number: HS05SW1HDR
- Equal-length 4-2-1 design; 42/42/50 mm piping (1.65 in. runners)
- Fully polished SUS304 stainless steel; TIG weld with 3-layer tubing; CNC machined flanges
- Uses OEM sensors and brackets; works with stock or aftermarket up-pipe (2-bolt up-pipe flange)
- Requires Subaru STI oil pan (part #11109AA151) for clearance
- Up-pipe not included — purchase separately
- Race/competition use only — not legal for street or highway use in California / CARB-restricted states
- Fits 2005-2009 Subaru Legacy GT
Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.
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