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07-09-2011, 04:35 PM | #2 |
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I know of a couple manufacturers currently working on a catless downpipe for the 35i. With the exception of the rear muffler the downpipe/primary catalyst is a major restriction in the e89 exhaust system. As a result removing the said restriction is going to yield both good sound and power. Keep an eye out for catless downpipes in the near future
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08-03-2011, 03:54 AM | #7 |
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i would really want to to go catless..but am still scared!!! if it will harm or effect the the engine .. i mean sound wise they say say it will sound louder and nicer but !! still confused
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01-19-2012, 03:58 AM | #8 | |
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Quote:
can't recommend more! |
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01-19-2012, 03:07 PM | #9 |
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Z4 DPs?
Where did you buy them?
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2012 Z4 35i DCT Black/Beige - 20" Vossen CV3, PB-Brake BBK, ///M Front Bumper, ///M Steering Wheel, Led Angel Eyes, Black Grille, Short Antenna - Tuning: JB4 Map 2, Custom Made 3" DPs & MPs, BMS Dual Intake - Desire list: 3D Design Front Lip, Meth Kit, FMIC.
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