AMS Performance VR30DDTT Street Lower Downpipes w/GESI Catalytic Converter

Looking to unleash more performance from your Infiniti Q50/Q60 while staying emissions-friendly? The AMS Performance VR30DDTT lower downpipes with GESI catalytic converters are engineered for serious street enthusiasts who want sharper throttle response, faster spool, and a rich exhaust note, without triggering check engine lights. These high-flow downpipes are your ticket to making the most out of your twin-turbo setup while keeping things clean and compliant.

Unlike restrictive factory components that choke your VR30’s true potential, these VR30DDTT lower downpipes feature a high-flow, EPA-compliant GESI cat core that supports up to 850HP. Combined with mandrel-bent 304 stainless steel and expertly TIG-welded construction, you're getting a product built for performance and longevity. Whether you're chasing dyno numbers or just want to feel the power on your daily commute, these downpipes deliver where it counts.

Engineered specifically for the Nissan/Infiniti VR30DDTT platform, these VR30DDTT lower downpipes are designed to bolt right in with no cutting or custom fabrication needed. That means less time in the garage and more time on the road. The inclusion of O2 sensor bungs and proper heat shielding ensures plug-and-play compatibility with your factory ECU and minimal heat soak, a must-have for spirited driving or track days.

Features:

• GESI High-Flow Catalytic Converters – EPA-compliant and capable of handling up to 850HP without triggering CELs, ideal for street use.

• Mandrel-Bent 304 Stainless Steel – Durable, corrosion-resistant material that maintains optimal flow and longevity.

• Bolt-On Fitment – Direct replacement for OEM downpipes on Q50 and Q60 VR30DDTT models — no cutting or fabrication required.

• TIG-Welded Precision – Clean, strong welds ensure durability under high thermal and performance loads.

• Improved Turbo Spool and Throttle Response – Freer exhaust flow enhances engine responsiveness and driving feel.

• OEM-Compatible O2 Sensor Ports – Ensures seamless integration with factory ECU and sensor calibration.

• Laser-Cut Flanges – Guaranteed leak-free seal with perfect alignment for reliable installation.

Say goodbye to factory restrictions and unlock the sound and performance your twin-turbo deserves. The AMS VR30DDTT lower downpipes with GESI cats are the perfect upgrade for performance-minded drivers who want power without the hassle. Whether you’re carving backroads or cruising the city, these downpipes deliver a noticeable improvement in power delivery, drivability, and exhaust tone, all while maintaining emissions compliance.

Specifications: