![APR Strut Tower Brace | B9 A4 · A5 · S4 · S5 · RS5 G82 · G83 M4 Competition 3.0L Turbo I6 [S58] The velocity stack also acts](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/APRStrutTowerBraceB9A4_A5_S4_S5_RS5.png?v=1749248792)
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The velocity stack also acts as a stable and solid foundation for the massive 5" filter and aluminum intake pipe for a reliable and sturdy assembly without any rubbing or rattles
tuning is not specifically required when installing this intake
tapping in for secondary boost gauge
See below section for recommended valve guide clearances
the ARM N55 Intake is designed with an open-ended bracket to keep the filter stable and secure during aggressive driving
APR Strut Tower Brace | B9 A4 · A5 · S4 · S5 · RS5 G82 · G83 M4 Competition 3.0L Turbo I6 [S58] The velocity stack also actsIntroducing the APR Strut Tower Brace (B9 Chassis A4 5, S4 5, & RS4 5)! The APR Strut Tower Brace for the B9 Chassis A4 5, S4 5, RS4 5, is engineered to enhance chassis rigidity, reduce flex, and improve handling for a more connected driving experience. While many systems prioritize the visual aesthetics of the engine bay, ours is a true performance upgrade designed for real world handling improvements. By replacing the factory stamped aluminum brace
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