17siturb0
Senior Member
- Joined
- Dec 3, 2016
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- Location
- U.S North east
- Vehicle(s)
- 2017 civic si sedan, 2006 civic si coupe
Yes they are free flowing. Look it up. It doesn’t have to have a straight through design for it to be free flowing lmao. And no it doesn’t just work like that.The Sport and Sport Touring is not a free flowing exhaust because it is not a straight through design. It changes direction a couple times. This is NOT a free flow design. Any restriction will lessen horsepower. You free up any motor, big or small turbo, you will have some gain. I would like to see YOUR test results to prove this, not copy/paste this from a thread here on the forum.
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