Exhaust Y Pipe Fits Peterbilt 377 & 379

• Peterbilt Replacement Pipe
• 5"3-BEND OD/OD/OD Y-PIPE
• ALUMINIZED
• Fits Most Peterbilt 377 and 378 Conventional Makes and Models

When purchasing Exhaust Components, please make sure that you are getting the right size and have the Ends figured correctly. ID = Inside Diameter OD = Outside Diameter.You can think of the pipe with an ID end as being the Female end of the Pipe, and the OD ended pipe being the Male.  The OD will fit inside of the ID.