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aFe Downpipe Honda Civic Si [High Flow Cat] (2016-2017-2018) 48-36604-HC

aFe Downpipe Honda Civic Si [High Flow Cat] (2016-2017-2018) 48-36604-HC
Brand: aFe
Part Number: 48-36604-HC
Availability: In Stock
Shipping: Free Shipping
Condition: New w/ Manufacture's Warranty
Your Price: $627.00 Shipped
   - OR -   

aFe Downpipe Honda Civic Si [High Flow Cat] (2016-2017-2018) 48-36604-HC

Gain 14hp and 27ft lbs torque on a 1.5" Coupe, Sedan or Hatchback - 3"

  • +14 HP and +27 lbs. x ft. Torque max gains *(Dyno results are from 2017 Honda Civic Coupe EX-T Manual)
  • Utilizes 400 CPSI (cell per square inch) catalytic converter for maximum flow
  • Constructed of 3" mandrel bent, brushed finish 304 stainless steel tubing
  • Machined factory style flanges are used for a secure leak-free seal
  • 100% hand TIG-Welded by certified craftsmen for race proven strength and durability
  • Includes O2 sensor extension
  • Includes second bung for either a wide-band O₂ gauge or auxiliary instrumentation

aFe downpipes are carefully researched, designed and fabricated to bring out the most horsepower and torque gains from your engine.  While many other companies simply take the stock design and just make it bigger, aFe's angles are designed to take advantage of the larger pipine to better scavange the exhaust gases and produce the most power.  

Our aFe downpipes include all necessary hardware and gaskets required for install and are a direct bolt on fit.  

aFe downpipes feature:

  • Mandrel bent stainless steel
  • 100% TIG welded for the best quality
  • 304 stainless steel
  • Thick flanges for a leak free seal
  • Includes all necessary hardware and gaskets
  • Hassle free fit and finish
  • Made in the USA (Corona, CA)

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Fitment Chart

Make Model Trim Year
Honda Civic 1.5L Turbo (Coupe/Sedan/Hatchback) 2016 - 2018
Honda Civic Si Turbo (Coupe/Sedan) 2017 - 2018

Ordering from Redline360

Redline360 is an Authorized Dealer so we only sell authentic and genuine parts and accessories.
Questions? Contact us regarding aFe 48-36604-HC.

Actual item may vary from picture