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Safe & Sound COmmercial Vehicle

The Walker® Safe & Sound® Commercial Vehicle Guarantee

We are so confident you will like your new, premium Walker® Mega-Flow® heavy duty muffler, we will make you this exclusive trial offer. Try a new Mega-Flow® muffler for 90 days. If you don’t’ feel that the Mega-Flow® muffler meets your expectations, we will replace it with any comparably priced unit of your choice.*

How the Offer Works:

First, if for any reason you don’t agree that the Mega-Flow® muffler performs as indicated, simply email our customer service department at

*Offer limited to one (1) Mega-Flow® muffler. Offer may be withdrawn at any time. Offer covers only Walker® Mega-Flow® premium mufflers. Offer does not include units improperly installed or substituted. Valid only on vehicles used for commercial use. Valid only on vertical applications. Installation costs under this offer limited to $50.00 per exhaust system replacement.