PerTronix JBA Exhaust 6641S User Manual
Installation instructions and warranty information

Installation Instructions
and Warranty Information
Part # 6641S 1979-1993 5.0L Mustang
Read all instructions carefully before attempting installation.
Rev. 06/11
Corporate Office: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 • FAX 909.599.6424
WARNING: The product accompanying this document is legal only for off-highway use (except in California or
states that have adopted California emission standards), racing use or for use on pre-emission-controlled motor
vehicles/motor vehicle engines (pre-1966 domestic vehicles certified to California standards, pre-1968 domestic
vehicles certified to federal standards and all pre-1968 foreign vehicles), per the manufacturer’s application guide.
P/N 6641S, 6642S, 6644S & 6645S