Stubstack Air Horn
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K&N Stubstack Air Horn

Part No. 85-5039 Warranty Details  

Fit of this part varies by vehicle & equipment specs Type of Fit

This K&N Stubstack fits 1-1/2 inch SU carburetors of type H4, HS4, HIF14, HIF38, and HIF4. K&N Stubstacks are designed to increase the airflow of carburetors by decreasing the restriction around the choke horn. The stubstack fits inside the air cleaner housing and slides snugly down over the choke horn.

Product Features:
  • Fits 1-1/2 inch SU carburetors of type H4, HS4, HIF14, HIF38, and HIF4
  • Increases the airflow by reducing restriction
  • Manufactured using high quality materials
  • Made in UK
  • Backed by K&N warranty
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