![APR Strut Tower Brace | B9 A4 · A5 · S4 · S5 · RS5 G82 · G83 M4 Competition 3.0L Turbo I6 [S58] 0 TSI ECU stage 1](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/APRStrutTowerBraceB9A4_A5_S4_S5_RS5.png?v=1749248792)
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0 TSI ECU stage 1 or 2 & 2+ calibrations (APR
tapping in for secondary boost gauge
23% higher flow over stock turbo inlet
See below section for recommended valve guide clearances
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
APR Strut Tower Brace | B9 A4 · A5 · S4 · S5 · RS5 G82 · G83 M4 Competition 3.0L Turbo I6 [S58] 0 TSI ECU stage 1Introducing 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
