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I daily drive 315 r888r and have put 9k miles on them. They are indeed noisy, and will only get noisier as they wear. I'm switching to 305 ps4s, and will miss the performance of r888r, but the loud humming after 9k miles does get to you eventually....
I've heard cup2s are great, but only when warmed up, and wears fast also.....might as well get r888r if you can stand the humming.
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2014 "AW/SO"me M5
Mission Performance/3.5 Bar
RK Autowerks/ CSF ICs
SSP Spec-R
KW V3/ Corsa Axle back
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