BLOX Racing Axle Back Exhaust Black Version Subaru WRX 2015-2021 / STI 2015-2021(Non SPT) Q60_2017-2021 BORLA® Cat-Back™ & Axle-Back exhaust

BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower

HID Decoder

heat-resistant fibers

This significant exhaust pressure reduction enables the turbine to run smoothly from low RPM range

BLOX Racing Axle Back Exhaust Black Version Subaru WRX 2015-2021 / STI 2015-2021(Non SPT) Q60_2017-2021 BORLA® Cat-Back™ & Axle-Back exhaustPart #: BXEX 51104 BK BLOX Racing's muffler delete replaces the OEM muffler from axle back and removes unwanted weight associated with the heavy, stock mufflers. BLOX Racing muffler deletes are constructed from T304 stainless steel, mandrel bent and TIG welded. Each delete kit is dual exit and features single wall quad exhaust tips that are coated black. APPLICATIONS 2015 2021 Subaru WRX2015 2021 Subaru STi (non SPT) SPECIFICATIONS3 piping3. 5"