This 3" diameter BORLA® Cat-Back™ system is designed specifically for the 1.6L engine in the GR Corolla. The system contains BORLA®'S Polyphonic Harmonizer Technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean, rich, full-bodied sound and the dual mufflers deliver the aggressive ATAK® sound with no drone. The system has an Exhaust Valve. It features 4 polished T-304 stainless steel tips, 2) 3.5" round (center) tips and 2) 4.5" round (outer) tips. Systems with black coated T-304 stainless steel tips, and carbon fiber tips are also available.

BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium, high-quality T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit.

Features:

• 3" diameter system 
• System features Polyphonic Harmonizer technology
• Dual muffler design
• Contains an Active Exhaust Valve
• T-304 stainless steel
• Direct bolt on

Tip Options:

• Black Chrome Tips
• Polished Tips
• Carbon Fiber w/ Black Anodized

Best of all, BORLA® stands behind every system with a Million-Mile Warranty. Just what you‘d expect from the world‘s most experienced (and most winning) exhaust brand. Give your GR Corolla the power and sound deserves, bolt on a BORLA®.