straight-pipe

Exhaust without muffler

A straight-pipe is an exhaust system with no muffler or catalytic converter—just a direct pipe from engine to tailpipe.

The result is dramatically louder engine noise, which some find exhilarating and others find obnoxious.

As a verb, to straight-pipe a vehicle is to modify it this way: He straight-piped his truck and now the neighbors hate him.

exhaust

loud

High in volume

catalytic converter · headers · resonator · turbo · downpipe · backfire · decibels · rasp · fumes · tailpipe

plumbing

conduit

Tube conveying fluid or cables

PVC · copper · galvanized · water line · drain · rigid · unbent · connector · nipple · threaded

Opposites
exhaust system modification

straight-pipecatalytic converter

Exhaust detoxification unit

sound output

straight-pipesilent

Producing no sound

muffled · dampened · quiet · hushed · subdued

legal/regulatory compliance

straight-pipestreet legal

Authorized for public roadways

Family

straight, pipe, straighter, straightest, straighten, straightened, straightening, straightens, straightness

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G