K&N drop-ins are a great little upgrade from the stock filters. As far as an aftermarket exhaust, do some research here on the forums; there are tons to choose from. If you can, try and meet up with other 370 guys so that you can hear their exhausts in person to make a better choice. Happy hunting.
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Fast Intentions / VarrsToen / Stillen / BC Racing / SPC / K&N / Project Kics / Hankook / Morimoto / JDM Rear Fog
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