Hi-Power mufflers offer a cost effective solution for your 2015-up Subaru WRX / STI. The rear section is made from SUS304 grade stainless steel for a high lustre finish and the piping section which is not visible once fitted is made from coated SUH 409, reducing the cost. SUH409 has other benefits such as being more resistant to thermal expansion and improved acoustic properties. SUH409 has the ability to absorb more sound than SUS304 which allows Hi-Power 409 mufflers to have a straight through design without fear of excessive noise.

• Efficient exhaust gas flow by the pipe layouts.
• Agressive exhaust sound.
• “JASMA” approved.
• The material of main silencer and tip is SUS304. Pipe portion, which is difficult to see are made of SUH409. This combination enables good appearance and high cost performance.
• Proven “Advantex* glass wool” (Continuous fiber glass wool).

Piping Diameter: 74.7-60.5 x 2mm

97mm tips

Sound Close: 97dB