Subaru Outback DIY equal length Exhaust manifolds (timelapse)
Ive made a set of bespoke custom exhaust manifolds for a Subaru Outback with a 3. 6 liter 6cylinder boxer engine. Theyre made from AISI 304 grade stainless steel, with tubing 42. 4 mm in diameter and 2 mm in wall thickness. These are allmotor headers. Each runner is 600 mm long, which is as long as you can make them given the stock exhaust configuration with flame arresters and catalytic converters in place. I routed both manifolds into a single HKS exhaust system, which ends with JASMAspec HKS brand muf
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