Unleash the potential of your BMW with Redstar Exhaust Secondary Downpipes - the ultimate secondary cat delete for X5 G05 M60i, X6 G06 M60i, X7 G07 M60i, Alpina XB7, F95 X5M LCI S68, F96 X6M LCI S68, and XM G09 / XM Label Red 4.4L. Designed specifically to replace the secondary catalytic converters, these performance exhaust downpipes install as a true plug-and-play upgrade with no check engine light issues.
By removing the restrictive secondary catalysts, Redstar downpipes improve exhaust gas flow for quicker turbo spool, sharper throttle response and significant gains in power. Expect a deeper, more assertive exhaust note and reduced under-bonnet temperatures when paired with Redstar's OEM-style heat shielding option, which cuts radiant heat by up to 80% to support performance and component longevity.
Engineered for durability and fitment confidence, each Redstar downpipe is manufactured from 2.0mm wall 304 stainless steel, 100% TIG welded and back purged, and finished with OEM-spec flanges plus factory-style brackets and mounts. The result is a high quality, bolt-on performance upgrade that integrates seamlessly with your BMW while delivering the unmistakable Redstar sound and response.
Available Options
- 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
- Noticeable power and torque gains from improved exhaust flow
- No check engine light when replacing the secondary catalytic converters
- Faster turbo spool and crisper throttle response
- Reduced under-bonnet temperatures with the optional shielding
- More engaging, aggressive exhaust tone
- True bolt-on, plug-and-play installation using factory mounting points
- Supports turbo longevity by lowering backpressure and heat exposure
Technical Specifications
- Secondary downpipes - replaces the secondary catalytic converters
- Highest quality 2.0mm wall 304 stainless steel construction
- 100% TIG welded and back purged for strength and internal weld integrity
- OEM-spec flanges for precise sealing
- All brackets and mounts replicated as on the OEM unit
