All Fuku Works Silicone Turbo Inlet Pipe are made with our multi-layer process that includes an internal stainless steel reinforcement for maximum rigidity to resist pipe sucking on high horse powered cars while providing the largest pipe diameter that could fit (3") resulting in more air and a smoother flow resulting in more horsepower and faster throttle response. Dyno tested and proven, the 100% silicone construction also eliminates heat soak. The final layer being our exclusive snake skin/carbon layer providing unprecedented performance and look along with a maximum temperature rating of up to 220°C/428°F.