STILLEN 2023-2026 Nissan Z Cat Back Exhaust "Street Series"

The STILLEN Street Series Cat-Back Exhaust for the 2023–2026 Nissan Z [VR30 Twin Turbo V6] is designed for daily-driven performance and refined sound enhancement. Engineered as a direct bolt-on replacement for the factory cat-back system, this exhaust system delivers a balanced exhaust note, optimized airflow, and superior reliability without the extreme volume of the Competition Series.

Constructed from 304 stainless steel with CNC-mandrel bent 2.5-inch tubing, CNC-machined X-pipe, and precision TIG-welded flanges, the system ensures durability, corrosion resistance, and optimal performance. A pair of high-polish stainless steel mufflers provides the perfect balance of tone for street use, while the STILLEN-branded supporting cross-brace adds system stability and visual appeal.

Extensive in-house R&D and on-vehicle testing refined the X-pipe layout to merge the left and right banks efficiently, preserving flow while enhancing sound. Customers can choose from polished stainless, burnt stainless, or carbon fiber exhaust tips to match their aesthetic preferences.

Vehicle Fitment

Nissan

• 2023–2026 Nissan Z [ZR30 Twin Turbo V6]

Fitment Notes

• Street Series Cat-Back Exhaust System
• Direct bolt-on replacement for factory cat-back
• Balanced design for daily driving with enhanced tone
• Stainless steel construction ensures longevity and corrosion resistance

Features & Benefits

• Engineered for daily-driven performance and sound enhancement
• Direct bolt-on replacement for factory cat-back
• 2.5-inch CNC mandrel-bent stainless steel tubing
• CNC-machined X-pipe for optimal exhaust flow
• Pair of high-polish stainless steel performance mufflers
• Precision TIG-welded stainless steel flanges
• Balanced exhaust layout developed through extensive testing
• STILLEN-branded supporting cross-brace for stability and visual enhancement
• Multiple exhaust tip finishes: polished, burnt, carbon fiber
• Dyno tested for performance
• 304 stainless steel construction for corrosion resistance and durability
• Proudly engineered, tested, and manufactured in the USA
• Limited lifetime warranty

Construction & Design

X-Pipe
CNC-machined X-pipe merges left and right banks efficiently (~4-inch cross-section) to preserve flow and enhance tone without excessive volume.

Mandrel-Bent Tubing
2.5-inch 304 stainless steel tubes, CNC mandrel bent for smooth airflow and minimal restriction.

Mufflers
High-polish stainless steel mufflers TIG-welded in-house for precision fit, longevity, and refined sound balance suitable for daily driving.

Exhaust Tips
Polished, burnt, or carbon fiber tip options TIG-welded to the mufflers with a stack-of-dimes finish and subtle multi-color burn trail.

Support & Visuals
STILLEN-branded cross-brace supports the system structurally while accentuating the rear undercarriage.

Why STILLEN

With decades of experience in Nissan/Infiniti performance, STILLEN focuses on precision engineering, rigorous testing, and American manufacturing. Every component is designed for performance, durability, and visual appeal, ensuring your 2023+ Nissan Z sounds aggressive yet refined for the street.