Invidia HS15SW4G3S Q300 Single Exit Cat-Back Exhaust System with Stainless Steel Tip

The Invidia Q300 Cat-Back Exhaust System delivers the perfect balance of performance gains and refined sound quality. Engineered for enthusiasts who demand both power and sophistication, this single exit exhaust system features advanced construction techniques and premium materials throughout.

Performance Features:

• 3-inch mandrel-bent SUS304 stainless steel piping for maximum exhaust flow
• Flat-bottom shaped muffler design improves high-speed aerodynamic performance
• Continuous piping design with Advantex material optimizes back pressure
• Enhanced horsepower and torque gains while maintaining excellent low and mid-range power
• Smooth radius bends minimize turbulence and restrictions
• Improved throttle response and overall driving dynamics

Construction and Quality:

• Premium SUS304 polished stainless steel construction for corrosion resistance
• Robot TIG welding ensures consistent, high-quality welds
• CNC-machined flanges for precise fitment
• Double-wall polished stainless steel rolled tip (4.33-inch outlet diameter)
• Exhaust hangers welded at OEM locations for straightforward installation

Sound Characteristics:

• Rich, deep sporty exhaust note that enhances the boxer engine sound
• Refined tone remains under 93dB for street-friendly operation
• Moderate volume - aggressive when on throttle, civilized during cruising
• Advantex internal material provides excellent sound control

What's Included:

• Complete cat-back exhaust system with single exit configuration (exits right side)
• All necessary gaskets, bolts, nuts, and hardware for installation
• 101mm stainless steel rolled tip

Installation Notes: If using a stock downpipe or J-pipe, a downpipe-to-3-inch cat-back adapter may be required for proper fitment due to the larger piping diameter. The system features direct bolt-on installation with exhaust hangers positioned at factory locations.

Backed by a 1-year manufacturer's warranty, this Q300 exhaust system combines race-inspired engineering with daily drivability, making it an ideal choice for both lightly modified and heavily built applications.