HKS Hi-Power Cat-Back Exhaust System - Nissan Skyline ER34 GTT 4-Door (1999-2002)

Name: Skyline ER34 GTT 4dr HKS Hi-Power Catback
Brand: HKS
SKU: 31006-AN016
Price: 940 EUR
Availability: InStock

The HKS Hi-Power Cat-Back Exhaust System is designed for the Nissan Skyline ER34 GTT 4-door equipped with the RB25DET engine. Engineered to deliver high exhaust flow, improved throttle response, and a deep, sporty exhaust note, it provides an ideal balance of performance and everyday driving comfort, making it suitable for both street-driven and performance-oriented builds.

The exhaust system is manufactured from 409 stainless steel, offering excellent durability along with strong corrosion and heat resistance. This material is well suited for turbocharged engines, ensuring long service life and consistent performance even under demanding driving conditions and elevated exhaust temperatures.

The straight-through muffler design reduces back pressure and optimizes exhaust flow, allowing the engine to breathe more efficiently. This contributes to improved throttle response and a broader, more usable powerband while delivering a deep, well-balanced exhaust note inspired by Japanese motorsport without becoming excessively loud.

Featuring an 85 mm main pipe and a 120 mm polished exhaust tip, the system provides excellent flow capacity while giving the vehicle the signature HKS Hi-Power appearance. Designed as a direct replacement for the factory exhaust, it offers OEM-style fitment with no modifications required.

Features

Fits the Nissan Skyline ER34 GTT 4-door (1999–2002) with the RB25DET engine.
Complete Hi-Power cat-back exhaust system.
Manufactured from durable 409 stainless steel.
Straight-through design for improved exhaust flow.
Reduced back pressure for improved throttle response.
Deep, sporty exhaust note inspired by Japanese motorsport.
Direct replacement for the factory exhaust system.
OEM-style fitment with no modifications required.
Polished 120 mm exhaust tip.
Main pipe diameter: 85 mm.

Product video

Technical specification

Article nr:

31006-AN016

Manufacture Partnumber:

31006-AN016

In October 1973, two talented and young engineers had a vision; to design and build high performance engines and components that major OE manufacturers could not, or would not, produce. HKS pioneered the Japanese aftermarket industry by delivering a host of exciting new products, including the first commercially available electronic turbo timer and boost controller. Other early products included piggy-back ECUs and sophisticated fuel management tools. HKS was clearly driving performance trends for Japanese vehicles forward!

Today, HKS is one of the world's most well-known brands and the obvious choice for you who builds a JDM car. In the assortment you will find everything from chassis products to exhaust systems and turbo kits. HKS is behind some of the coolest builds and professional drivers in the world, so when you choose HKS, you choose the best.