Tomei Equal Length Exhaust Manifold Subaru WRX 2002-2014 / STI 2004-2019
Tomei designed the headers to be the 4-2-1 layout with 42.7mm, 45mm, 60mm sizes to help extract the absolute maximum from your EJ25 turbine with the equal length design. The exhaust pressure is controlled best by this layout and you can see the 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.
Put this on a 2013 WRX hatch and it really helps with interior drone at higher rpms and seems like the throttle is more responsive at lower rpms. Gives it a nice refined exhaust sound. And hopefully I'm helping my motors longevity. Beautiful welds and bends. Very satisfied
Very content with the performance and quality of this manifold. I would recommend them. I would recommend that the included wrap be installed to keep oil temps within acceptable range.
Header is well manufactured. Welds are beautiful. It was nice that the wrap came with them. Perfect fitment.
Bought this header for my husband. The wrap that was included was awesome and so easy to do. He and I got it done in what felt like 10 minutes. Header itself sounds amazing in my opinion. Happy with the money I spent on this!