This Heavy Duty all Stainless Header is adpatable for all Kohler engines requiring a 1 inch size Header.

This Header is Custom build to upsize from the 1 inch T Connection of the Header to a 1.25 Pipe Nipple and from there on, all connections can continue using the 1.25 inch Pipe Nipple Convention.

A 1 3/8 inch Stainless Flex Hose will insure a 'Air Tight' connection. (Sold Seperatly) at the link below:

https://www.truckmountstore.com/10-ft-1-3-8-inch-stainless-interlocking-flex-hose/