What size exhaust pipe is on a 2002 Chevy Trailblazer?
Chevy Trailblazer 2002, Quiet-Flow™ Stainless Steel Oval Aluminized Exhaust Muffler by Walker®. Muffler Inlet Diameter: 2.5″. Muffler Outlet Diameter: 2.5″. Muffler Body Length: 27″.
Is 3 inch exhaust pipe ID or OD?
Most exhaust piping is going to be measured using OD dimensions which is outer dimensions of the pipe or the outer diameter. That means if you were to purchase a three-inch pipe—let’s say like the one we have here—the outside diameter of this pipe would actually be three inches.
Is bigger exhaust pipe better?
Exhaust pipes are made bigger to allow better exhaust flow. This is important for increased performance and horsepower (not for the sound). Instead, aftermarket exhaust also equips a less restrictive muffler – which is responsible for the much louder sound.
Is 4 inch exhaust too big?
This means that an extremely large exhaust pipe will actually cause SLOWER exhaust flow, and decreased performance. The general rule of thumb for exhaust systems is, as we said 3-3.5in for 250-350whp, above that 4″ exhaust is the right size, but that’s about as big as you want to go, even at the 400whp-500whp level.
Can a downpipe be too big?
The very basics of it is bigger the better, no such thing as too big, the best is none at all, and the main gains from a downpipe are in spool, but if the overall size is too small you can gain masses at the top end too (100bhp+ in some cases at the same boost).
What’s the best size exhaust?
Exhaust Size As a rule, switching to a performance system that is 1/4″ to 1/2″ larger than the standard system combined with free-flowing muffler designs will provide you with the best overall horsepower increases.
Does a bigger exhaust use more fuel?
A larger exhaust downstream of the turbo will have slower moving gas, reducing scavenging at the exhaust manifold and increasing the energy required to accelerate the exhaust gas with each exhaust stroke.
Is it bad to straight pipe your car?
a race car style exhaust system is a bad upgrade for a street vehicle. A straight pipe, for example, can cause exhaust gas velocity to increase. This will likely reduce engine performance below 2,000 or 2,500 RPM, making your vehicle a little slower to launch from a stoplight.