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T304 Muffler Delete / Axle Back - 2022+ Subaru WRX 4.0"


WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

BLOX Racing's T304 Muffler Delete Kits are made from T304 stainless steel and TIG-welded for durability and reliability against cracks and leaks. Each features OEM location hangers and includes new gaskets and hardware.

BLOX Racing Muffler Delete Kits replace the OEM mufflers and greatly reduce the bulk and weight associated with them. 

BLOX Racing Muffler Delete Kits are axle back, dual-exit, quad tip designs and provide the classic Boxer rumble with a more aggressive and throaty tone. 

Available in Polished or Matte Black with 4.0" tips.

Vehicle Applications

  • 2022+ Subaru WRX


  • Replaces heavy and bulky OEM mufflers
  • 2.5” OD piping
  • 4.0" OD single-wall angled tips
  • T304 stainless steel
  • Mandrel-bent tubing; TIG-welded
  • Dual muffler delete design, quad tips
  • Direct bolt-on, axle back
  • Includes new hardware and gaskets
  • Aggressive looks
  • Throaty exhaust notes and tones 
  • Available in matte black or polished finish tips


  • Bolts to 2-hole exhaust flange
  • Will not work with aftermarket exhaust system