Redstar Alfa Romeo Stelvio Quadrifoglio Downpipes
Pairs well with
Unleash your Alfa Romeo Stelvio Quadrifoglio with Redstar Exhaust Stelvio Downpipes, purpose-built for the 2.9 F154 twin-turbo V6. These performance exhaust downpipes replace the restrictive factory downpipe sections to free up flow on the Quadrifoglio platform, targeting sharper response and stronger mid-range pull while preserving full compatibility with the Stelvio QV.
Developed using advanced CAD and motorsport-inspired fabrication, the flow-optimised, smooth-transition design reduces backpressure to help the twin turbos spool sooner and breathe more efficiently. Choose Redstar's OEM-style heat shielding option to cut radiant exhaust heat by up to 80%, supporting consistent performance and protecting surrounding components under the bonnet. The result is a noticeable increase in power potential, quicker throttle reaction, and a deeper, more assertive exhaust character.
Engineered for longevity, each system is crafted from premium 2.0mm wall 304L stainless steel, TIG welded and back purged, and equipped with OEM-spec V-band flanges. With all brackets and mounts mirroring the original equipment, installation is a true bolt-on, and the assembly is LHD and RHD compliant. Redstar downpipes deliver proven quality, precise fit, and the unmistakable Redstar focus on performance and refinement.
Available Options
Key Performance Benefits
- Significant power and torque gains from improved exhaust flow
- Faster turbo spool and crisper throttle response
- Lower under-bonnet temperatures for more consistent performance
- Deeper, more aggressive exhaust tone
- Helps promote longer turbocharger life
- 100% bolt-on installation
Technical Specifications
- 2.0mm wall 304L stainless steel construction
- 100% TIG welded and back purged
- OEM-spec V-band flanges
- Flow-optimised smooth transition design
- All brackets and mounts as on the OEM unit
- LHD and RHD compliant
Manufacturer fitment
- 2017+ Alfa Romeo Stelvio Quadrifoglio 2.9L F154 twin-turbocharged V6
Professional fitting is recommended.
Redstar Alfa Romeo Stelvio Quadrifoglio Downpipes
GESI GEN2 UHO+ 400cpsi 4.5" / Heat Shielded
$7,419.00
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