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I would say the same IMHO.
Majority of all exhaust systems for our cars sounds the same. (I've heard them all)
I would go with RPI for more power and efficiency.
Contact owner RPI Eloy and he will give you all the specs, details, and a great deal on his products.
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Joey Lee BMW l ///M Power l IG: JoeyLeeBMW
2014 BMW ///M6 Coupe " Competition Package" CLICK: Intro Thread Pictures
l Vorsteiner CA Demo Car l Toyo Tires l Trinity Autosport l Targa Trophy l Shift S3ctor |