Unleash performance in your Audi Q7 4M/4M.5 E839 3.0t Turbo, Audi Q8 4M/4M.5 E839 3.0t Turbo, and Bentayga Hybrid E839 V6 3.0L Turbo with the Redstar performance exhaust downpipe. Precisely matched to the E839 3.0T single-turbo engine architecture, this upgrade replaces the restrictive factory downpipe immediately after the turbocharger to free up exhaust flow across these platforms.
A big bore layout with smooth, flow-optimised transitions reduces back pressure to speed turbine acceleration, delivering faster spool and sharper throttle response while elevating overall power. The optional OEM-style heat shielding features a ceramic inner liner that cuts radiant exhaust heat by up to 80%, helping control under-bonnet temperatures and supporting turbo longevity. For high-output builds, the GESI GEN2 400cpsi catalytic converter option supports up to 1000hp with smoother flow and improved efficiency compared with factory units.
Built as a 100% bolt-on solution, every Redstar downpipe is crafted from 2.0mm-wall 304L stainless steel with TIG-welded, back-purged construction, OEM-spec V-band flanges, and factory-style brackets. Motorsport-inspired thermal management and precision fabrication deliver a richer exhaust tone, proven performance gains, and the durability expected from Redstar downpipes for Audi Q7, Audi Q8, and Bentayga Hybrid owners.
Available Options
- GESI GEN2 400cpsi Catalytic Converters: The latest GEN2 series from GESI is rated to support up to 1000hp while offering smoother exhaust flow and improved efficiency compared with factory units. Featuring advanced emissions technology for optimal catalyst function at high flow rates. A strong choice for those seeking significant performance gains with refined operation.
- OEM-Style Heat Shielding: Redstar's signature thermal management system reduces radiant exhaust heat by up to 80%. Developed with motorsport-inspired materials and construction, it uses a multi-layer design of ceramic insulation and embossed stainless steel foil. Unlike wraps or coatings that degrade quickly, Redstar shielding delivers long-term durability and consistent protection for engine bay components.
Key Performance Benefits
- Significant power gain
- Faster turbo spool and sharper throttle response
- Helps extend turbocharger service life
- Lowers under-bonnet temperatures
- Enhanced, sportier exhaust tone
- Straightforward 100% bolt-on installation
Technical Specifications
- Big bore, flow-optimised smooth transition design
- 2.0mm wall 304L stainless steel
- 100% TIG welded and back purged
- OEM-spec V-band flanges
- All brackets and mounts as on OEM unit
