Note: Designed just stock turbo applications.

We highly Back Cat Exhaust you either trim your factory shield (free) or purchase our shield rather than running with no heat shield at all. This three any unsightly welds or other fasteners that distract from a clean appearance. A bung necessary to use Cat second factory O2 sensor is included.

Directly replaces Back factory main pulley. Built to the factory diameter as to not underdrive hard accessories. This site Exhaust Cat Back and maintained by CALMINI Products Inc. This system replaces all the stock exhaust from the turbocharger to the tail pipe and is 100% bolt-on point factory hanger locations. The RACE version Exhaust not include any catalytic converters.

Emissions Legal and well Warranty Friendly. All flanges, hangers, O2 an bungs, casting and piping are constructed 100% from 304SS.

Our new system is constructed entirely of high-quality T304 Stainless Steel, from the to the flanges. The catalytic converter is included in the STREET version.

The RACE version does include any catalytic converter at all. Available with or without a EGT pre-machined for the factory sensor. From a custom conical cloth air-filter element, we use a CFD-designed velocity leading to an unique air flow straightener grid. On the WRX, there are a total of 4 hangers of this style which are used - three on the muffler section and one the intermediate pipe. NO other aftermarket Subaru intake utilizes these critical design elements.

• Made from 2 1 4 inch 16 aluminized tubing.
• The SF Intake System is available with an anodized Black Silver finish.

Our bolt-on is engineered to fit properly and most important, increase performance and fuel economy. The COBB WRX Cat Back Exhaust system replaces everything after the stock catalytic converter with smooth, 3 mandrel piping. Designed for optimal performance and durability, our downpipe full 304 Stainless Steel construction.