411WORKS SS Heat Sink O2 Bung (Coped) Quantity:1 Single this K&N filter maximizes engine

this K&N filter maximizes engine protection while minimizing maintenance costs

reliable connections in high-performance applications

the GReddy OX-01 ensures your engine stays protected even under high-revving

Trust K&N to keep your engine breathing clean air

411WORKS SS Heat Sink O2 Bung (Coped) Quantity:1 Single this K&N filter maximizes engineCrafted with precision and pride, our SS Heat Sink O2 Bungs are machined in house on our HAAS CNC machines, using high quality 304L Stainless Steel from Sweden. Our bungs are Coped to fit 2. 5" 4" diameter tube size. Bung threads are M18x1. 5. Made in the USA: Precision CNC machined in house using materials from Sweden. Coped to fit 2. 5" 4" diameter tube size.