What size is the chevy s10 exhaust pipe ?

The Chevy S-10 exhauSTSize is listed at 2 1/4" to 2 1/2" depending on the engine type that is equipped in Your truck. The exhauSTSize is important because You will need to know the size when upgrading if that's what You decide to do. Upgrading the exhauSTSystem is one of the fastest and easiest ways You can get higher HP for the engine. Replacing the stock exhaust with a performance exhaust and high flow catalytic converter is something that can really help You increase the power of the truck and it will also give it a louder better sounding roar when revving the engine. Just be careful going larger than 2 1/2" because any larger without the proper engine mods will cause Your engine to lose power.