Nissan Skyline R34 GTR Front Exhaust Outlet Extension Down Pipe RB26DETT

The Nissan Skyline R34 GTR Front Exhaust Outlet Extension Down Pipe is a genuine OEM component engineered to maintain the precision, performance, and reliability of the RB26DETT twin-turbo system. Crafted from high-quality welded steel, this factory down pipe connects directly to the front turbocharger, channeling exhaust gases efficiently into the main exhaust manifold or crossover system. Its carefully designed geometry preserves exhaust velocity and reduces backpressure, ensuring rapid turbo spool and smooth boost transition across the RPM range—critical for maintaining the R34 GTR’s signature balance of power and response.

This down pipe comes with the correct bung welded on for the front oxygen (O2) sensor, allowing proper factory monitoring of exhaust oxygen content for closed-loop air-fuel ratio adjustments. This ensures precise fueling, efficient catalytic converter operation, and consistent thermal management under high-performance conditions. The pipe also plays a vital role in directing hot exhaust flow away from sensitive turbo components, preventing oil coking and bearing wear during demanding operation. Over time, original outlet pipes can corrode or warp under extreme heat cycles, compromising flow efficiency and fitment. Replacing it with a genuine Nissan unit restores optimal exhaust routing, heat dissipation, and factory-grade reliability.

Suitable for both V-Spec and non V-Spec models, this rare OEM down pipe is ideal for restorations or precision engine rebuilds where authenticity and durability matter most. Terra Firma Automotive proudly offers these limited-supply Nissan Skyline R34 GTR Front Exhaust Outlet Extension Down Pipes, ensuring your RB26DETT performs exactly as its engineers intended.