Flowmaster Mufflers gets the job done when it comes to an exhaust system designed to fit my 1997 GMC Sierra 1500 5.7L pickup truck. I have explored other alternatives, but when it comes to cost, installation, sound, and overall performance, the Flowmaster American Thunder exhaust system is the way to go. The system kit comes with everything you need to complete the installation. The important parts being the aluminized Flowmaster 70 Series muffler, 2.5” diameter dual pipes which exit out the back and 3” polished stainless steel tips for the pipes. My particular application is to fit a 4 wheel drive truck, but you can easily equip a 2 wheel drive truck with this system.
The tubing is designed to provide proper exhaust gas flow and allow you to improve gas mileage. The best part is the aggressive sound you can experience with this Flowmaster system. The sound isn’t obnoxious like some exhaust systems, but emits a deep tone which can sound pretty mean when you open it up.
When you purchase a kit from Flowmaster, you can expect a 1 year warranty on workmanship and materials. Lifetime of the product can vary, depending on what type of weather elements you expose your truck to. Overall, I’ve been satisfied with this product, and will purchase this type of exhaust system again. Visit Flowmaster's website to find out about all products this company has to offer.