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How to Find the Right Muffler

Job Description

Finding the Right Fit

  • Are you dealing with a single or dual exhaust system? Logically, a single exhaust requires a single-inlet muffler. If you’re merging a dual exhaust into one, then you need a dual-inlet muffler.
  • Your inlets – and occasionally, outlets – need to be matched to your existing exhaust pipe diameter. If the end is fully exposed, you can use a simple tape measure or ruler to measure from one outside edge to the opposite outside edge across the center point. To find the internal diameter, do the same thing, only starting from the inside edge to the opposite inside edge. If the end of the pipe is blocked, however, you can use a pair of dial calipers to find the outside diameter. Finding the internal in this instance is a little more difficult – you’ll have to cut the pipe to make a proper measurement. For more detailed instructions, check out our article How to Measure Your Exhaust Pipe.
  • Under-vehicle clearance must also be taken into account before finalizing your choice. Make sure the casing size and shape allows enough room within the confines of your ride’s undercarriage. The right length ensures ease of installation and proper clamping.

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