GR YARIS G16E-GTS

Upgrade your Toyota G16E-GTS Engine with GSC Power Division Super Alloy Performance Exhaust Valves, built for superior airflow, efficiency, and durability in turbocharged engines.

The back cut design improves airflow, increasing power output and RPM potential. Micro-polished valve stems reduce friction and oil retention, ensuring smoother operation and longer component life, even at high RPMs.

Crafted from super alloy materials, these valves withstand the extreme heat and stress of turbo and supercharged engines. Hardened valve tips ensure extended durability and optimal contact with the rocker or valve tappet.

Designed for OEM replacement, these valves fit seamlessly with OEM keeper/lock systems. GSC Power Division recommends using new valve locks in performance setups to avoid material grooving.

Valve Features:

• Enhanced Engine Efficiency: Improved airflow leads to better engine breathing, resulting in greater power output and overall engine efficiency in both turbocharged setups.
• Back Cut Design: Strategically crafted to optimize air flow, allowing your engine to achieve higher RPMs and improved performance across the powerband.
• Micro-Polished Valve Stems: Minimizes oil retention on the valve stem, significantly reducing friction and drag, ensuring smoother motion within the valve guide for improved efficiency and longevity.
• Super Alloy Construction: Designed to withstand extreme temperatures, especially in turbocharged and supercharged engines, ensuring consistent performance and durability under high-stress conditions.
• Hardened Valve Tips: The valve tips are reinforced using a mid-stem friction weld process to extend valve life and minimize wear, ensuring optimal contact with the rocker or valve tappet.
• OEM Keeper/Lock Compatibility: Designed to work seamlessly with OEM triple groove keeper/lock systems. While compatible, we recommend not reusing old valve locks in performance applications to avoid the risk of material grooving.
• GSC Power Division Quality: Backed by GSC Power Division's commitment to delivering top-tier quality and performance, ensuring that every valve meets the highest standards in the industry.

Fitment:

• Toyota G16E-GTS Turbocharged Engine
• Toyota GR Corolla
• Toyota GR Yaris

Sold Individually or as Sets:

• 3-Cylinder Applications: Sold individually or as a full set of 6

GSC Power-Division Conical Valve Spring Kit with Ti Retainer for the Toyota G16E-GTS for the GR Yaris and Corolla includes 12 titanium retainers (6 Intake and 6 Exhaust) and 12 Conical valve springs and 12 new Spring Seats. 

True conical valve springs aren’t a new concept—they’ve been proven in the industry to offer several key advantages over traditional spring designs. One of the biggest benefits of conical springs compared to traditional cylindrical or beehive springs is their ability to dampen and eliminate valvetrain harmonics. Out of the three designs, conical springs lead the way in maintaining valvetrain harmonic stability.

Thanks to their varying coil diameter and spacing, conical springs act as natural harmonic dampers, absorbing the shock in the valvetrain. This means less stress, less wear, and a longer life for your engine components. This level of protection is essential for today’s engines, which are being pushed to their physical and mechanical limits.

Every GSC conical spring undergoes a super-finished surface treatment in addition to a patented, multi-step heat treatment process. The result? A super reliable, high-performance spring that lets you push higher RPMs and use more aggressive cam profiles with confidence.

If you’re looking to get the most out of your engine, GSC conical springs are the way to go. They’re built to perform, engineered to last, and designed to let you take your engine to the next level.

• Max RPM: 10,000 RPM
• Max boost: 60 psi

GSC Power-Division Exhaust Valve Guide for Toyota G16E-GTS, stopper style

• Standard sized sold as set of 6 or individually
• Oversized sold individually as +0.001" and +0.003"

GSC Power-Division Intake Valve Guide for Toyota G16E-GTS, stopper style

• Standard sized sold as set of 6 or individually
• Oversized sold individually as +0.001" and +0.003"

GSC Power-Division Viton Valve Stem Seals for the Toyota G16E-GTS Engine

These are an upgrade from the standard OEM material to help cope with the higher heat caused increasing the performance of your engine.

Sold as a set of 12