What is a cat back system?
A cat-back exhaust system is a modification in the exhaust pipe to improve airflow. The system runs from the tip of the exhaust to the catalytic part of the system. The cat-back system comprises a pipe connecting the muffler to the catalytic converter, and the exhaust tip.
How much HP can you get from a cat back?
In terms of power, though, that’s objective data. The new exhaust adds two pound-feet of torque and 2.5 horsepower, but only once VTEC kicks in and the engine needs more airflow. That’s not a ton, but it’s something. It also adds lightness, because the 34 pound difference is considerable.
What’s the difference between muffler and cat back system?
The catback exhaust replaces all of the exhaust piping from the catalytic converter back to the muffler. It replaces the muffler and tip as well. It’s also commonly referred to as an “exhaust system”. Some cars have intermediate pipes or mid pipes that flow pretty good from the factory.
Where is the cat back exhaust system located?
Cat Back Exhaust Systems. The Borla “Cat Back™” name implies the exhaust system is located behind the factory catalytic converter where there factory emissions remain untouched and vehicle stays emissions compliant. This remains distinct from the Axle Back exhaust system that is located behind the rear axle.
How much horsepower is gained from a cat back exhaust system?
How much horsepower is gained depends highly on the design of your factory exhaust system and the quality of the catalytic converters in front of it. If the stock catalytic converters are fairly restrictive, then less power can be gained from a cat back exhaust system.
When did Borla start making cat back exhaust?
Alex Borla coined the phrase ‘Cat Back’ and introduced the Cat Back performance exhaust in 1978, a bolt-on replacement performance exhaust system requiring no welding, thus being secured using the factory hanger locations.