Important information for service professionals
When installing Walker exhaust parts, keep the following in mind to ensure a successful repair:
- Verify the application in the catalog. Do not overlook any footnotes that will influence installation.
- Intermingling of competitor's parts may cause a system to not fit the application properly. This is because many OE exhaust systems leave the factory as a single welded unit - there are no breaks in the system. For aftermarket purposes, this type of exhaust system is sometimes impractical. To make installation easier for the service provider, aftermarket manufacturers produce replacement parts in smaller pieces that are easier to handle and install. Not all exhaust system manufacturers break the OE system at the same points. This difference in connection points sometimes creates complications when mixing aftermarket components from a variety of manufacturers.
- Always check parts for damage before installing them. Sometimes parts are damaged during shipment. Minor handling damage to pipe ends or muffler bushings can be easily repaired.
- When installing a new part, make sure the other parts are in good condition. A broken pipe end could cause the system to be too short.
- If the muffler and pipe were originally welded assemblies, and the catalog does not recommend replacing both parts together, be certain the cutoff was made within 1/2" of the weld.
- Ensure the vehicle has not been modified in any manner that would void the catalog listing. Some frequent examples of this are engine swaps, header installations, etc.
- Check to see if the part is designed in such a manner that the inlet end can be confused with the outlet, so that the part could potentially be installed backwards. Most Walker mufflers are marked to designate the outlet end, making it is easy to see if the muffler is positioned correctly.
- Is the muffler rotation correct? Many mufflers can be installed 180° rotationally incorrect, causing fit problems with the rest of the system.
- Check the silhouette of the vehicle. Does the exhaust system hang too low? The top of the exhaust pipe should not be visible when viewing the vehicle from the side.
CAUTION: MINIMUM CLEARANCE FOR ANY PART OF THE MUFFLER TO THE UNDERBODY OF THE VEHICLE SHOULD BE AT LEAST 1".
- When a heavy-duty clamp is required, the clamp should be torqued down to approximately 40 foot-pounds to ensure a tight seal. If the seal is not airtight, loosen the clamp, rotate it 180° and then tighten it again.
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The content contained in this article is for informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein. Under no circumstances will we be liable for any loss or damage caused by your reliance on any content.