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      04-10-2021, 09:01 PM   #55
Alan l.
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Drives: 2020 F95 X5M Competition
Join Date: Jun 2009
Location: United States

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I was just implying for pure performance gains doing the primary / secondary downpipes is the way to go. You aren’t going to gain much from an exhaust system since the factory one is already free flowing.

I have the slip on only and the sound difference from stock is pretty noticeable. Tone is better and more exotic sounding too. It’s not drastically louder since it’s just the slip on system but it’s enough for me. Cold start is the loudest I want to go with the current setup.
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