Today we're taking you on a short tour of the Mugen exhaust/header fabrication shop. Located behind the main showroom in Tokyo, this ultra clean and efficient facility is where all the Mugen headers and exhausts are fabricated.

All Mugen exhausts and headers are constructed from polished T304 stainless steel, including all attachment points. T304 is considered the best steel available for corrosion resistance and all-around toughness. The flanges are cast stainless steel and use OEM gaskets and hardware for a precision fit.

Each exhaust and header is TIG welded on an extremely robust jig to ensure absolute perfect fitment.

Here a center resonator is packed with sound deadening material before being welded to the B pipe:

The finished product is racked before being packed up for shipping. This represents a typical production run of B Series headers.

You can check out the currently available Mugen exhaust components in our online store. You can also order a custom header made by King Motorsports. In the tradition of the Mugen headers, the dyno-proven King headers are hand-fabricated with T304 steel for any H, B or K Series and built for perfect fit and maximum horsepower gains.