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APS High Flow Exhaust

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   Optimum gas flow and minimal exhaust back pressure is essential for high power. The APS high output stainless steel exhaust system really performs.

   Careful attention to tube diameter, smooth radius mandrel bends and muffler design is essential for high performance.

   APS has also custom engineered the highest possible quality catalytic converter. With true 3" inlet/outlet connections, it features a high flowing stainless steel monolith packed in stainless steel mesh. No other aftermarket converter (and few O.E.M. pieces) are constructed to this high specification level.

   Careful attention has been paid to exhaust noise and note without compromising outright performance. A strong but subdued exhaust note with no drone at highway cruise and well matched to the dynamics of the WRX.

   The APS High Output system is engineered as a complete system including every nut, bolt and gasket required for installation.

   The end result is an exhaust system that produces high outright power with stronger mid range torque than fabricated turbine outlet style exhausts. All this with improved turbo response (less lag) when running large turbochargers and maximum durability.

DR Series 3.5" Turbo to Tip Race Exhaust

    The worlds first bolt-on 3.5" Stainless Steel (304) turbo to tip race exhaust designed for 600+ horsepower. Minimal exhaust back pressure, fast turbocharger spool-up and maximum horsepower is guaranteed.
   The APS DR Series 3.5" Turbo to Tip Race Exhaust is a true 3.5" internal diameter exhaust system through each and every section. By utilizing the latest technology precision mandrel bends with the smallest possible bend angles spread over the maximum possible length, optimum exhaust gas flow minimum exhaust back pressure is achieved.


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