Mallofusa 3Pcs Exhaust Pipe Expander Tool Set Kit Muffler Tail Pipe Butt 1-1/8″ to 3-1/2″ with Blow Mold Storage Case

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For fitting aftermarket components to standard exhausts. Used to expand a length of pipe in equal proportions so the pipe is the same diameter and not tapered.
This Tail Pipe Expander set is designed to quickly and easily straighten clamp dents in mufflers and tail pipes. A Simple Wrench Turn Expands Pipe for Exhaust System Repair & Installation.
Large Flare Expander Tool: 2-1/8″ To 3-1/2″ Inner Diameter, Medium Flare Expander Tool: 1-1/2″ To 2-1/2″ Inner Diameter, Small Flare Expander Tool: 1-1/8″ To 1-3/4″ Inner Diameter
Just select the correct size pipe expander for your pipe and then insert it in the damaged pipe end, then turn the expanders turning bar till the dents are removed. Note: needs to be inserted fully, to work proper, or will cause belling (in short-penetration situation, like muffler, you can put a strong clamp around exposed portion).
Includes carrying case, spare o-rings, and 3 sizes of expander. For use on all types of tail pipes, mufflers, and exhaust systems. Works with all 1-1/8 to 3-1/2″ lD thin-wall pipes.