Extreme Heat Protection for High-Performance Turbo Engines - Ultra Plus RTV Silicone Gasket Maker is specifically engineered for 4-cylinder high-performance and turbocharged engines, delivering super high-temperature resistance up to 650°F (343°C). With a neutral cure, low-odor, non-corrosive formula, it creates a reliable, oxygen sensor-safe seal perfect for extreme conditions like exhaust manifolds and turbo housings.

Designed Specifically for 4-Cylinder Turbocharged Engines

Tailored for high-revving, high-heat engines where maximum sealing strength and heat tolerance are essential.

Oxygen Sensor Safe & Non-Corrosive

Safe for today’s advanced engine systems, won’t harm sensors or corrode sensitive engine materials.

Super High-Temp: Effective Up to 650°F (343°C)

Outperforms standard RTVs with thermal stability designed for racing, performance builds, and turbo systems.

Great for Exhaust Manifolds

Ideal for sealing turbo flanges, downpipes, and exhaust manifold connections under extreme heat and pressure.

Neutral Cure, Low Odor

Cures without strong fumes or acid byproducts, perfect for closed spaces or shop environments.

Flexible, Long-Lasting Seal

Forms a durable, vibration-resistant seal that won’t crack or shrink under thermal cycling.