Owners manual

Installation Instructions
2841 W. Clarendon ● Phoenix, AZ 85017 ● Phone [phone] ● Fax [phone]
http://www.pacesetterexhaust.com
Part# 82-1176 Off Road Y-Pipe, 99-05 Silverado/Sierra.
Use with #70-2265, 72C2265
Before beginning installation, read and make sure you understand all instructions, and have
necessary equipment at hand.
Before working on the vehicle, make sure that it is well supported by jack stands or ramps of sufficient load
capacity for the weight of the vehicle. NEVER work on any vehicle which is supported only by its service jack.
This Y-Pipe is designed to connect Pacesetter headers part number
70-2265 to original muffler and tailpipes. It may not work with other headers.
1. Disconnect battery
2. Vehicle should be on lift (preferred), or on jack stands or ramps, and header installation complete.
3. Support front of exhaust and disconnect forward rubber exhaust hanger. Lower front of exhaust about six inches.
4. Measure 2" forward from both header collector outlet ends and mark with tape. This will indicate how far the Y-
Pipe inlets should be pushed onto the collector outlets.
5. Slide driver side extension part #211761 partway onto collector of driver side header outlet.
6. Slide passenger side extension part #211762 onto collector of passenger side header and onto outlet of driver side
extension.
7. Push Y-Pipe assembly onto header outlets to tape marks, or as close as possible.
8. Install U-Clamps at header outlets, and at Y-Pipe joint. Snug nuts but do not tighten yet.
9. Slide adaptor part#211763 onto end of Y-Pipe outlet. Clean and lube contact surface of original exhaust flange.
Slide muffler back and up and onto adaptor flange. Install original nuts on flange studs, but do not tighten yet.
When you are satisfied that all components are properly aligned, tighten clamps and flange nuts.
Remove vehicle from stands, reconnect battery. Start engine and check for exhaust leaks and rattles. Listen or watch for
clearance issues. Test drive.
It is recommended that all exhaust system clamps be re-torqued after the first hot-cold cycle, and periodically thereafter.
Due to the lubricants used in the mandrel bending process, some smoke may be seen on initial startup. This is normal
and not harmful. It will disappear as the lubricant burns off.