GReddy 11590412 Bolt-On Turbo Kit TF035HL 14GK 6cm² Without Catalyzer LHD

The GReddy 11590412 is a complete bolt-on turbo kit engineered specifically for the JB74W platform, designed for Left-Hand Drive (LHD) vehicles. Built around the TF035HL-14GK turbine with a 6cm² exhaust housing, this kit is purpose-matched to the K15B naturally aspirated engine and delivers meaningful power and torque gains across the entire RPM range — all without requiring internal engine modifications.

Produced by TRUST under the GReddy brand, this kit uses a stainless steel lost-wax cast exhaust manifold for precise fitment and durability. The front pipe in this configuration ships without a catalytic converter, making it intended for off-road or competition use. A front-mounted TYPE41 intercooler fits within the factory front grille opening, keeping the installation clean and compact. Intake duties are handled by a GReddy AIRINX S-size air filter, paired with aluminum intercooler piping (50mm–60mm) and a 50mm aluminum suction tube.

Kit Includes:

• TF035HL-14GK Turbine — 6cm² exhaust housing
• Stainless Steel Lost-Wax Exhaust Manifold
• SUS 50mm Front Pipe (without catalytic converter)
• Intercooler TYPE41 (front grille mount)
• AIRINX S-Size Intake Air Filter
• Aluminum Compression Tube — 50mm to 60mm
• Aluminum Suction Tube — 50mm
• Hardware short parts set (bolts, gaskets, hoses, grommets)

Important Installation Notes:

• ECU reprogramming or aftermarket engine management is required
• Oil return line modification to the stock oil pan is required (or use GReddy pre-drilled oil pan)
• Stock washer tank must be replaced or relocated
• Low-viscosity oils (0W-16, 0W-20) are not compatible — SAE 5W-30 recommended
• Spark plug heat range upgrade to equivalent of No. 8 is recommended
• Oil temperature monitoring is essential after installation; an oil temperature gauge and oil cooler are recommended
• This kit is configured for Left-Hand Drive (LHD) vehicles only

The GReddy TF035HL bolt-on turbo kit is a proven forced induction solution for the JB74W, offering a factory-quality installation experience with performance-grade components developed by one of Japan's most respected tuning brands.