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Interesting results. I'd of guessed the double X, 3 inch pipe would make more horsepower, but no. A bit of a disconnect between the 3 pipe test and his video on how the ti x pipe is put together. In the ti X pipe build video, he says the double x pipe lost some horsepower. From the 3-way test, it lost about 5 rwp from the single X, but still was higher than the stock factory x pipe (578 for stock x vs 600 for the single x and 596 or so for the double x).
Last edited by Steve Garrett; Feb 11, 2018 at 04:19 PM.
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Nice video. The dyno comparison was well done. Glad I got the Borla. It definitely adds torque and horsepower. Interesting that the Akrapovic lost some low end torque, but did well at higher revs.