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Old 02-12-2017, 09:37 PM   #1091
BRZ FTW
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Join Date: Feb 2012
Drives: 2017 Subaru BRZ
Location: San Antonio, Texas
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Garage
Quote:
Originally Posted by AceHeader-MT View Post
The tapered ends create a small venturi and helps the gas evacuate quicker.

Exhaust gasses come in a pulse. By placing merges and pipe diameter changes in the correct place, you can create small vacuum areas. These vacuums help the gas be pulled through the pipes to form a smoother wave pattern and allow the engine to breathe better.

That's why Smooth is Fast
Will the current front pipe fit 2017 MT?
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