4SRC Large 3.5″ Stainless & Cast Down‑Pipes for Nissan GT‑R R35 (2007–2024)

Upgrade your GT‑R to the next level of exhaust performance with our latest down‑pipes, now fully revised for maximum flow and durability. Every detail refined to support serious tuning setups.

🔧 Product Overview

• Fitment: Nissan GT‑R R35 (2007–2024)

• Material: Premium stainless steel body with cast stainless collector ends (both turbine‑outlet and Y‑pipe connection)

• Bore Size: Full 3.5″ (≈ 89 mm) throughout—no reduced section, no compromise

• Heat Management: Includes an integrated high‑performance insulation wrap throughout the mid‑section, reducing thermal load under high‑boost conditions

• Power Handling: Built to support beyond 2,000 bhp without collector‑cracking or failure

• Finish: Raw stainless and cast components—ready for fitment and further coating or ceramic wrapping if desired

🔍 Key Features

• True 3.5″ Flow – Unlike many designs with bottlenecks, this system maintains full diameter from turbo outlet to mid‑pipe connection for optimal exhaust gas velocity and turbo efficiency.

• Cast Collector Ends on Both Sides – The upgraded version features cast ends at both the turbine outlet and Y‑pipe junction, enhancing structural integrity and long‑term reliability under extreme loads.

• Advanced Thermal Insulation – A dedicated insulation layer in the mid‑section helps control under‑bonnet temperatures, improving performance stability and protecting surrounding components.

• Heavy‑Duty Construction – Stainless steel structure engineered for motorsport use; designed to stand up to high‑temperature, high‑boost environments.

• Direct-ish Fitment – Designed as a direct replacement for OEM down‑pipes on the R35 GT‑R with minimal adaptation required for aftermarket Y‑pipes or full exhaust systems.

🛠 Installation & Notes

• Prior tuning remap strongly recommended to match the new flow characteristics.

• Ensure all hardware is torqued to spec, check clearance to propshaft and heat shields.

• For road‑legal applications check local emissions regulations—this product is optimised for performance use.

📋 Specifications Summary