Not sure which 2003 Chevy Silverado Performance Mufflers are right for you? We have over 976 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I like the fact that it has a good tone but you can roll the windows up and listen to the radio and hardly notice it." —Jeff W from Cleveland, OK bought a Flowmaster 50 Series Delta Flow Mufflers for a 2003 Chevy Silverado.
"I purchased this muffler recently and i love it. It was easy enough to install with a leangth of straight pipe to adapt to my old tailpipe and welding it all in. At first it was not as loud as i was expecting but after about a week breaking it in, it sounds great! I would recomend this to anyone who is looking to have their truck sound mean! The super 40 has that loud, deep, throaty sound that flowmaster claims. It makes my 03 Silverado 1500, 4.8L-V8 sound BA even though it is still a small-block. The drone inside the cab is not to bad except at about 50 to 55 when on the gas. No chance yet to do the math on weather or not it actually improves gas mileage but i have noticed a slight increase in power and torque." —Keith M from Windham, ME bought a Flowmaster Super 40 Series Mufflers for a 2003 Chevy Silverado.
"I hooked up a single 3" in, duel 2.5" out muffler with 3 inch chrome tips and it sounds greater than I ever imagined. I've started a new trend at college. I've heard them on the internet, but since I have them on my truck, i still can't get over the deep throaty sound! When I leave, people know it! Now that the system is broken in the tone is just immense! I have gotten better gas milage and acceleration too! I only use and 1/8 of a tank to go 50-60 miles to school now, instead of a 1/4 tank. And I have a 2003 silverado 1500 with a 327 vortec. The interior sound is a little lound when shifting from 1st to 2nd but after that you just her a rumble. There is a drone at 65 mph and on, but not too bad. Again, I can't say enough about my flows!" —Dan D from South Burlington, VT bought a Flowmaster Original 40 Series Mufflers for a 2003 Chevy Silverado.
"This muffler is great, very little interior resonace with aggressive exterior growl. I really like me new muffler." —Adam D from Muenster, TX bought a Flowmaster 40 Series Delta Flow Mufflers for a 2003 Chevy Silverado.