Tomei designed these equal length headers with a 4-2-1 layout with 42.7mm, 45mm, 60mm runner sizes to help extract the maximum horsepower from your EJ25. The exhaust pressure is utilized best by this layout and you can notice peak power gains at high RPM.

The lost wax process was used to eliminate cracking from welded weak points and for aiding smooth exhaust gas flow with out any interference. You will have a new higher pitched racing sound from the isometric design. With 2.5mm thick pipes made from SUS304 Stainless Steel.

*Photos for marketing purposes only. Actual product may vary in appearance / style.