The non comp has the button , the only difference between comp exhaust and the non comp is the front muffler that u can get it for 1200 dollar and lay 300 to get it installed.
As for the black tips , in the m8 u can Not remove them bc they are welded , but when u install the exhaust u can get the rear catback and powdercoat the tips for another 300 or u csn live with the chrome look
This a non comp with powdercoated tips
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