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TOMEI EXHAUST MANIFORLD EQUAL LENGTH FOR SINGLE SCROLL EJ255/EJ257
4-2-1 Isometric Design for Optimum Results at High End RPM
-Perfect Pipe Size, All Equal Length
The headers to be the 4-2-1 layout with φ42.7mm, φ45.0mm, φ60.0mm 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 & you can see the peak power gains & at high RPM.
-Stronger, More Precise Lost Wax Collector
The Lost Wax process was used to eliminate cracking from welded weak points and for aiding smoother exhaust gas flow without any interference.
-An All New Boxer Sound
You will have a new higher pitched racing sound from this isometric design. With 2.5mm thick pipes made from SUS304 stainless steel.
TOMEI STRAIGHT DOWN PIPE WRX STI ’08-’14 USDM VER.2
Tomei Catless Straight Down Pipe dramatically improve exhaust flow and significantly
reduce over 53% of weight vs. stock down pipe. Addition to massive torque and power increase,
lightness dramatically improves handling.