Milltek Primary Cat Decat Downpipes – Nissan GT-R R35 (2009-2015)

Product Code: SSXNI013 | Maximum exhaust flow, ultimate turbo response and pure racing performance for the VR38DETT

The Milltek Primary Cat Decat Downpipes are the ideal choice for GT-R owners looking to get the most out of their VR38DETT twin-turbo engine .
By completely removing the primary catalysts and replacing them with high-quality stainless steel straight pipes of optimal diameter, back pressure is drastically reduced and turbo efficiency is maximised.

This immediately produces noticeable improvements:

• Much faster turbo spool

• More torque across the entire rev range

• Higher top-end power

• More aggressive and louder exhaust note

Manufactured from high-grade stainless steel with precision-fit flanges and TIG welding, Milltek delivers the quality and durability befitting a supercar like the GT-R.

Key Features:

✅ 304 stainless steel construction – Durable, heat resistant and corrosion free
✅ Decat design – Complete removal of primary catalysts for maximum flow
✅ More power & torque – Ideal in combination with ECU tuning
✅ Turbo spool-up – Faster boost, more direct throttle response
✅ Perfect fit – OEM mounting points and flanges, plug & play mounting

Technical specifications:

Why choose Milltek Primary Cat Decat Downpipes?

• Maximum power gain – Removes the biggest restriction in the GT-R exhaust system

• Better turbo efficiency – Lower EGTs (exhaust gas temperatures) and less turbo pressure loss

• Racing experience – More intense sound, more pops & crackles

• Seamless integration – Perfect fit for OEM and aftermarket systems

• Proven quality – Milltek is a top choice worldwide for performance exhaust upgrades

Perfect combination for maximum performance:

For the ultimate GT-R power setup, combine these downpipes with:

• Milltek or Invidia Cat-Back Exhaust System – Maximum flow and weight reduction

• HKS Racing Suction Kit – More air, faster spool

• ECU Stage 2 tuning – Essential for optimal performance and safety

• Invidia Titanium Secondary Cat Delete – For a fully open flow from the turbos

This combination gives you a GT-R that accelerates harder, responds faster and produces a pure racing sound .

Application:

• Nissan GT-R R35 (2009–2015)

• Suitable for street and circuit use

• Fits OEM and aftermarket cat-back systems

Installation:

Supplied as a complete set including gaskets and mounting material.
Simple plug-and-play installation with no welding required – however, professional installation and ECU modification are recommended for best results.

NB:

In many countries, removing catalytic converters is only permitted for track use. Always check local regulations.

Delivery time & Availability:

Genuine Milltek Sport product – usually available within 1–3 weeks .
Carefully packed and shipped worldwide.

In summary:

• ✅ High-quality 304 stainless steel construction

• ✅ Full primary cat delete for maximum flow

• ✅ Faster turbo spool and more torque

• ✅ Aggressive and loud exhaust sound

• ✅ Perfect for high-performance GT-R builds

Transform your Nissan GT-R R35 into a pure race car for street and track with the Milltek Primary Cat Decat Downpipes – faster, louder and more powerful.