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The ARM 6" B58 Downpipe features two O2 sensor bungs to allow for reinstallation of the OEM oxygen sensors
improves turbo spool
Independent Ride Height And Spring Tension Preload Adjustments
0L BMW F32 430i B46 2
VRSF S58 Downpipe Upgrade | 2020-2025 BMW M3 & M4 - G80/G82/G83 G20 The ARM 6" B58 DownpipeWe are proud to introduce our VRSF 3 Race Downpipes for the S58 G80 G82 G83 M3, M4. These 3 downpipes are the best bang for the buck mod available for your S58, with gains from 27hp & 33tq when tuned. By eliminating the restrictive catalytic converters in the factory downpipes, back pressure is reduced significantly which results in faster spool, an increase in power & a more aggressive exhaust note. Rather than necking down closer to the turbos like
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