Borla 140958 S-Type II Cat-Back Exhaust System for 2003-2008 Nissan 350Z

Borla(r) was among the first with a performance exhaust upgrade for the original Z cars. To create this incredible system, we took our popular 140045 system and gave it the more powerful S-Type II sound with no drone inside the vehicle. This 2.25" diameter Borla(r) Cat-Back(tm) System is a True Dual exhaust with a H-Pipe for increased performance and improved sound. Independent dyno tests have shown gains of 15-20 horsepower & torque. Unlike other aftermarket exhaust systems that actually loose power in mid-range and low end, Borla(r) gains through the entire RPM range. Serious performance enthusiasts understand that true power gains are not simply a big number at max RPM but rather strong torque gains over the full curve. The straight-through design allows Borla(r) exhaust incredible flow increases. The Z car flow numbers improved 27% over stock! Flow makes power. The Borla(r) True Dual Z-car lightweight high quality T-304 austenitic stainless steel system actually weighs 11 pounds less than the factory single exhaust. Add to this package a great look with large single 4.5" round angle-cut rolled edge bright chrome on T-304 stainless steel tips on each tail pipe. Systems with black chrome on T-304 stainless steel tips, and carbon fiber tips are also available. This Borla(r) exhaust puts the Zoom in the Z car. Isn't it time you stepped up to Borla(r)? Borla(r) Performance Industries, the original pioneers of high quality, T-304 austenitic stainless steel (superior to T-409 or aluminized steel) free flow exhaust utilizes its patented award and race winning technology to deliver quality, sound, sound, performance gains and enhanced fuel economy - all with an easy bolt-on installation. All backed by the famous Borla(r) written million-mile warranty. S-Type Cat-Back(tm) Exhaust System II 2003-2008 Nissan 350Z 3.5L V6 Automatic/ Manual Transmission Rear Wheel Drive Coupe/ Convertible. 2003-2008 Nissan 350Z 3.5L V6 Automatic/ Manual Transmission Rear Wheel Drive Coupe/ Convertible.

• Borla(r) system is a True Dual design
• System contains a H-Pipe
• Powerful S-Type II Sound

Upgrade your 2003-2008 Nissan 350Z with the Borla 140958 S-Type II Cat-Back Exhaust System, engineered for drivers who want stronger performance, improved exhaust flow, and an aggressive yet refined exhaust note. Designed for 3.5L V6 models with automatic or manual transmissions, rear-wheel drive, and coupe or convertible body styles, this system replaces the factory single exhaust with a true dual configuration and integrated H-pipe.

The straight-through design helps reduce exhaust restriction and supports power gains throughout the RPM range. Independent dynamometer testing has shown improvements of up to 15-20 horsepower and torque, while flow testing demonstrated a 27% improvement over the original exhaust system. The S-Type II sound delivers a powerful exterior tone while maintaining a comfortable, drone-free cabin experience. Constructed from premium T-304 austenitic stainless steel, the Borla 140958 system is built for durability, corrosion resistance, and long-term performance. Its lightweight design is approximately 24 pounds lighter than the factory single-exhaust arrangement, helping reduce vehicle weight without sacrificing strength.

Large, single 4.5-inch round, angle-cut, rolled-edge bright chrome tips provide a clean, performance-oriented appearance at the rear of the vehicle. The system is designed for an easy bolt-on installation and is backed by Borla's written million-mile warranty. This application is not CARB approved and may require acknowledgment of applicable emissions regulations before installation or use. Confirm vehicle configuration and local requirements before ordering.

Fitment

Fits 2003-2008 Nissan 350Z models equipped with the 3.5L V6, automatic or manual transmission, rear-wheel drive, and coupe or convertible body styles. Verify exact vehicle configuration before purchase.

What's Included

One Borla 140958 S-Type II Cat-Back Exhaust System with true dual exhaust tubing, H-pipe, mufflers, and bright chrome exhaust tips. Installation hardware and components are included as supplied by Borla.

Features:

• True Dual Exhaust Design: Replaces the factory single-exhaust layout with a true dual system for improved flow and a performance-focused appearance.
• H-Pipe Configuration: Helps balance exhaust pulses, enhance midrange performance, and produce a deeper, more refined exhaust note.
• S-Type II Sound: Delivers an aggressive Borla exhaust tone outside the vehicle while minimizing unwanted interior drone.
• T-304 Stainless Steel Construction: Premium austenitic stainless steel provides excellent durability, corrosion resistance, and long-term performance.
• Straight-Through Flow: Low-restriction muffler design supports increased exhaust flow and power throughout the RPM range.
• Dyno-Tested Performance: Independent testing has shown gains of up to 15-20 horsepower and torque compared with the factory system.
• Lightweight Design: Weighs approximately 24 pounds less than the original single-exhaust arrangement to help reduce vehicle weight.
• Bright Chrome Tips: Includes large 4.5-inch round, angle-cut, rolled-edge T-304 stainless steel tips for a distinctive finish.

Fitments:
2003 Nissan 350Z Base
2003 Nissan 350Z Enthusiast
2003 Nissan 350Z Performance
2003 Nissan 350Z Touring
2003 Nissan 350Z Track
2004 Nissan 350Z Base
2004 Nissan 350Z Enthusiast
2004 Nissan 350Z Performance
2004 Nissan 350Z Touring
2004 Nissan 350Z Track
2005 Nissan 350Z 35th Anniversary Edition
2005 Nissan 350Z Base
2005 Nissan 350Z Enthusiast
2005 Nissan 350Z Grand Touring
2005 Nissan 350Z Performance
2005 Nissan 350Z Touring
2005 Nissan 350Z Track
2006 Nissan 350Z Base
2006 Nissan 350Z Enthusiast
2006 Nissan 350Z Grand Touring
2006 Nissan 350Z Touring
2006 Nissan 350Z Track
2007 Nissan 350Z Base
2007 Nissan 350Z Enthusiast
2007 Nissan 350Z Grand Touring
2007 Nissan 350Z Nismo
2007 Nissan 350Z Touring
2008 Nissan 350Z Base
2008 Nissan 350Z Enthusiast
2008 Nissan 350Z Grand Touring
2008 Nissan 350Z Nismo
2008 Nissan 350Z Touring

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1