Jim Smart
September 7, 2007

Few things in the recent past equal the excitement of Ford's all-new yet retro '05-'07 Mustang. Sales have been quite healthy, with no drop in sight despite rising fuel prices. The message in 2006 is much the same as it was in 1964: We love Mustangs. So bring on the petrol and let's go cruising.

Ford has brought us one heck of a base Mustang for '05-'06 with its powerful 4.0L SOHC V-6 as standard equipment, borrowed from the Ranger and Explorer parts bin. The 4.0L Vulcan V-6 is based on the proven Mustang II pushrod V-6s from long ago. We can even trace it further back to Ford's '62 Mustang I concept car, which had a V-4 version of the Vulcan V-6. So within the new V-6 Mustang beats sits the original two-seat concept car. With all this spirit, it seems logical to add even more performance and image to '05-'07 V-6 Mustangs.

The American Thunder series muffler is a bolt-on swap right out of the box, with the quality you expect from Flowmaster. Because the '05-'07 is the easiest Mustang to work on in years, the muffler swap takes about 30 minutes.

Because the Vulcan overhead cam V-6 has a rich, European tone right off the assembly line, you might be inclined to ask how it could sound any better. Flowmaster has always been interested in vehicle sound, not to mention performance. That's why its mufflers can be identified without actually seeing the vehicle, even by people who don't know automobiles.

Flowmaster's American Thunder series mufflers and exhaust systems are quick bolt-on solutions to both performance and sound. American Thunder systems are available for '65-'73 classic Mustangs as well as '79-'04 Fox-bodies, just in case you happen to be interested in a throaty bark at the tailpipes. Flowmaster continues its Mustang spirit with the American Thunder series systems for '05-'07 Mustangs. We ordered the American Thunder muffler designed specifically for new V-6 Mustangs (PN 17421) and were pleasantly surprised by the rich tone.

We stopped by LaBree Motor-sports in Southern California where Brent LeBree and his son, Greg, were installing a Flowmaster American Thunder muffler on an '06 Mustang coupe.

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