PerTronix Dougs Headers D6679 - Manual

Part No. 0110-003069
Page 1
rev.1 11-19-13 DSL
HEADER INSTALLATION INSTRUCTIONS
D6679
1996-2004 FORD Mustang, 4.6L, 2 Valve
PART NUMBER: D6679
PerTronix ©
thanks you for choosing
DOUG’S HEADERS, the best fitting, highest quality header on the market. In order to
realize the full potential of our good fit, please read and understand these instructions completely prior to starting work.
CHECK TO MAKE SURE YOU RECEIVED THE PROPER PARTS FOR YOUR APPLICATION. THE HEADER NUMBER WILL BE
STAMPED ON THE ENGINE FLANGE. IF YOU ARE UNSURE YOU HAVE RECEIVED THE PROPER PARTS CALL BEFORE
YOU START WORK.
BE SURE TO WORK SAFE! WHENEVER YOU WORK UNDER THE VEHICLE BE SURE THAT IT IS LOCATED ON LEVEL,
SOLID GROUND AND IS SUPPORTED BY ADEQUATE SAFETY STANDS!
REMEMBER: HOT ASPHALT WILL NOT SUPPORT MOST JACK STANDS!
Many factors affect the installation of headers, some of which are broken or aftermarket motor mounts, accidents that impact the
configuration of the frame, and/or the installation of different engines or aftermarket cylinder heads. Most installations require some
welding. If you are uncomfortable with welding operations, we recommend that you contact a professional exhaust system specialist
to install your new headers.
Attention Customers breaking in new engines: Due to the extreme heat generated during the break-in process, the appearance of
the ceramic coating may be altered in certain areas. The protection characteristics and thermal barrier properties of the coating is
never compromised. It is recommended that a cast iron manifold or old set of headers be used for this process.
Notice: The coating of these headers can be marred or scratched during installation. If the header needs to be returned and is
damaged, you will be charged for recoat.
Note: X-Pipe Part No. D921 is recommended to be used and installed with this header
Note: SPECIAL COMPONENTS NEEDED FOR ASSEMBLY:
Oxygen Sensor Simulator Part # RPM003020
May be purchased from: RPM Outlet.com 281-261-6244
DISASSEMBLY
1. Disconnect the negative battery cable from the battery.
2. If a car lift is not available, raise the vehicle 2 feet or higher and support it with adequate safety stands
(axle stands preferred). Make sure the vehicle is on a flat solid surface and is stable.
3. Apply penetrating oil to all nuts and bolts to be removed.
4. Disconnect the E.G.R. tube from the throttle body.
5. On Cobra models, remove the upper tower support bracing.
6. Remove the bolt from the oil dipstick tube.
7. Remove the oil filter.
8. On hard-top models, remove the A-arm brace.
9. Disconnect the (4) O
2
sensor wires from the H-pipe. Remove the R/S O
2
sensor next to the starter motor.
10. Remove the H-pipe assembly.
Corporate Office: PerTronix Inc. 440 E. Arrow Highway, San Dimas, California 91773 * Phone 909.599.5955 * FAX 909.599.6424 * www.dougsheaders.com