I like my Stillen a lot. Previous owner put it on, but it was a bonus for me because it saved me some time

Some great brumble noise when the RPMs drop, and then when you get in the higher RPM range it's deafening and gets your blood pumping !!!!
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Pearl White 2010 370Z Sport, Stillen CBE, tint, K&N drop-in filters, GT-R start button, Kenwood DNX-6980 with backup cam, LED bulbs, Raceseng shift knob.