Milltek Primary Cat-Back Toyota Corolla GR 1.6T 2023-2025, With Resonator + Secondary Cat Bypass, Quad GT115 + 100 Polished

Milltek Sport Exhaust System for Toyota Corolla GR

Does the factory sound of your Toyota Corolla GR leave you wanting more? This Milltek Sport stainless steel exhaust system is the upgrade owners request most: more presence, a true sound signature and long-lasting build quality.

Technical specifications

• Milltek part number: SSXTY159
• Part type: Exhaust system
• Configuration: resonated (with resonator), with valves
• Details: With resonator + secondary cat bypass, quad GT115 + 100 polished stainless steel outlets
• Tube diameter: 76.2 mm (3 inch)
• Outlets: 4 GT outlets: 2 x 100mm + 2 x 115mm
• Tip finish: polished stainless steel
• Installation information: Fitted after the primary catalytic converter without cutting the factory line, with valve
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Toyota Corolla GR 1.6T (2023-2025)

Not sure it fits your vehicle? Contact us with your VIN before ordering.

Frequently asked questions

• Highway drone? It's the number one concern on forums. This version keeps a resonator: the sound stays full under acceleration, but the exhaust stays mellow at steady cruising speed, ideal for daily driving.
• What about the neighbors in the morning? The valves operate as on the factory system: closed and quiet on startup or in comfort mode, fully open in sport mode.
• Installation: fitting requires cutting the factory exhaust. We recommend having it installed by a professional.

Why choose Milltek Sport?

Owner feedback most often highlights fit quality and a deep sound that is present but never harsh. That is the signature of Milltek Sport, a British manufacturer specializing in stainless steel exhausts.

Going further

• Resonated or non-resonated cat-back: which one should you choose for your car?
• Exhaust valves: how do they work and should you keep them?