16 Nov Does a Catback Exhaust Make Power?

Does a 3 Inch Exhaust Make Your Car Faster?
By Aaron Gaghagen

The K series might be Honda’s greatest engine of all time. One of those reasons is that they respond to modifications so well. Since the mid 2000s, the hot setup for K powered cars was to run a three inch exhaust. But, how true is that? Is it an urban legend that got spread like wildfire on the Honda forums? Does this Thermal Research and Development 3 inch exhaust make power? We try to find out using our mostly stock FA5 (2007 Civic Si) by testing the 1/8th mile time.

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DISCLAIMER:

VTEC Academy videos are for educational and entertainment purposes. We can not guarantee the modifications performed in the video are legal in your locality. Do not do any modifications to your vehicle that will void your warranty or in any way violate your local laws. We assume no liability for property damage or injury as a result of any of the information contained in this video. Use the information provided at your own risk. It’s on you, dog.