1-3/4 x 5-5/8" flared port tube

The flared design of these port tubes is far superior in looks and performance to the straight designs you normally see.

These are 5-5/8in long, start out at 1-3/4in diameter at the rear and trumpet out to 2-7/8in diameter at the front. They'll press fit nicely into a 2-11/16in diameter hole.