Exhaust tips aren't going make it louder.. lol. You're much better off just getting rid of the muffler if you really want it louder.
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2008 335xi 6MT | VRSF Catless DP | VRSF 7" FMIC | VRSF CP | TIAL BOV | DCI | MHD 2+
BC Racing BR | Stoptech 600 | Firehawk Indy 500 255 Square | Atric Altimax 225 Sq.
2018 F-150 Platinum 701A | FX4 | 3.5 EcoBeast
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