Performance gains/myths exhaust

Ignoring the disputes in the other thread.. And personal experiences/feelings aside...



Has anyone tested various back boxes on the same car.. To compare how each back box affects power/torque?



Mate of mine is taking a TF to Emerald that has a full scorpion exhaust system.. I've asked him if we can try my custom made back box on it to compare..



In an ideal world we could do with a 160 f/TF on a rolling road and then swap just the back box.. Comparing a Daytona, TT7, TT4, Cybox, scorpion et



All need to be tested on the same car to get accurate results..



I understand some just want noise and don't care about gain or loss.. But for those who do it could be a good excersise

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