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.

For vehicles with 3-1/2" sidepipes, such as: Grand Sports, Cobras. We offer the same inserts to fit these applications. Priced as the standard sizes, 2-3/4"inner not available.

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.

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.