BLOX Racing 15-18 Subaru WRX / 15-17 Subaru WRX STI Muffler Delete Kit


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9 in stock

SKU: bloBXEX-51104 Category:



BLOX Racing’s all-black and standard version 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 matte black deletes are dual-exit, quad tip designs and provide the classic Boxer rumble with a more aggressive and throaty tone. 

Vehicle Applications

  • 2015-2020 Subaru WRX
  • 2015-2020 Subaru STi (non SPT)

T304 Muffler Delete Specs

  • 3? piping
  • 3.5″ tips
  • T304 stainless steel
  • Mandrel-bent tubing; TIG-welded
  • Available in black or standard stainless steel finish

Features & Benefits

  • Dual muffler delete design, quad tips
  • Single wall construction, matte black finish
  • Direct bolt-on
  • Includes new hardware and gaskets
  • Replaces heavy and bulky OEM mufflers
  • Aggressive looks
  • Throaty exhaust notes and tones 


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

Click here to read more about Blox Racing Warranty & Exchanges

Please contact first to see if we can assist with any issue you have encountered.

Warranty & Exchanges

BLOX Racing warrants all products to be free of defects in materials and workmanship under normal use for a period of fifteen (15) months from the date of retail purchase. The warranty, however, does not include damage to parts resulting from improper installation, misuse or abuse. Any parts returned must be determined by BLOX Racing to be defective, prior to the part being replaced. All parts found to be under warranty will be replaced or repaired by BLOX Racing.

No refunds will be provided for any warranty items for products purchased directly from BLOX Racing or All refunds will be issued in the form of merchandise credit. BLOX Racing does not provide any refund or credit for products purchased elsewhere.

A 20% restocking fee will be charged on all returned merchandise. All returned merchandise must be in a “like new” and resalable condition.

Special orders cannot be returned for any reason.

Call tags will not be issued and no COD returns will be accepted. All freight transportation of returned or warranty products are the responsibility of the purchaser.

All warranty and return claims will require a RETURNED MERCHANDISE AUTHORIZATION (RMA) number and the original sales receipt or invoice before they will be inspected by BLOX Racing.

Please allow 2-4 weeks for inspection and response to the claim.

BLOX Racing assumes no responsibility for any damage or injury to persons or property resulting in improper installations or misuse of any product nd will not be responsible for any claims of loss of profit, labor and delay, indirect, incidental or consequential damages that might be claimed as a result of failure of any part.


BLOX Racing

Additional information

Weight15.8 lbs
Dimensions27.4 × 13.3 × 10.1 in


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