These large 4-inch Corvette Sidepipes have been popular for many years, because of their macho looks and high performance possibilities. With these large “Side Cannons” when it comes to sound you have two choices: wide open (with maybe a bit of too much BIG SOUND for some.

To solve the problem we’ve made our inserts with your choice of 3 different inner baffle tubes (2”, 2.25”, & 2.5”) for a wide range of sound and performance. These slide in inserts are made with 14ga. aluminized steel and are 29¼” in length.

Thanks to Gregg for helping develop these inserts for the 4" Corvette Sidepipes. 

In this sound file you can hear the Sweet Thunder coming from these SideCannons!

He's running our largest, 2 1/2" Inner Baffle Tubes.  They produce the biggest sound compared to our smaller Inner Baffle Tubes.

As you can see in this photo the original insert, with it’s 1 7/8” inner, is not very conducive to good exhaust flow. The front end of our insert, has a very open funnel to guide the exhaust into the chambered muffler, regardless of the inner baffle tube diameter.