Impreza WRX/STi (94~07)...

Dump-pipe (WRX / STi, Forester GT/XT)

• Material Option 1:304 grade stainless steel, Highly Polished, Mirror Finish;
• Material Option 2:Mild steel coated with silver color high-temperature resistant paint
• Bell-Mouth style with smooth, unrestricted, wide open design, optimize exhaust gas flow from turbo outlet, minimize back pressure
• Flexi-Bellow Joint absorb vibration from engine rocking, prevent component failure from fatigue
• Pipe Size Options 1: 3” , most common used pipe size suitable for most common modification set-up.
• Pipe Size Options 2: 4” ; Suitable for high-end modification and extreme hi-power output.

Turbo Back System (WRX/STi)

• 3" bell mouth style dump-pipe;
• 3" hi-flow racing cat;
• 3" middle section with hot-dog style resonator;
• Four Options of Rear Mufflers:
  
  • Straight out cannon muffler: 4.5" tip,7" barrel,muffler sitting in straight out position;
  • Angle Out Cannon muffler: 4.5" tip,7" barrel, muffler sitting in slight angle;
  • Twin tip oval muffler: twin 3" O.D round resonated tips,6"X10" oval barrel. Sound level is low, around 90dB+;
  • Single tip oval muffler: Single 4.5" O.D round resonated tip, 6"X10" oval barrel. sound level is low, around 90dB+.
• Power Gain: After numerous dyno runs before and after fitting the XFORCE turbo-back system, it’s proven that the power gains are around 20~25kw at wheels for the standard setup WRX.

Turbo Manifold (EJ20/EJ25)