Invidia 02-07 WRX/STi 76mm Q300 Stainless Steel Cat-back Exhaust - HS02SW1G3SFind parts that fit my vehicle

Invidia 02-07 WRX/STi 76mm Q300 Stainless Steel Cat-back Exhaust

• Reduces back pressure and turbo lag
• Increases throttle response and horsepower
• Made of durable 304 stainless steel
• Improves performance and weight reduction
• Enhances exhaust sound

Invidia exhausts are engineered to optimize performance without compromising durability. The 02-07 WRX/STi 76mm Q300 Stainless Steel Cat-back Exhaust is designed to enhance your vehicle's power, style, and sound. By replacing your OEM catback with this aftermarket system, you'll experience noticeable improvements in horsepower and overall performance.

Invidia's team of engineers conducts thorough research and development for every exhaust component they manufacture. They carefully balance exhaust back pressure and gas velocity to maximize performance gains. The use of high-quality materials, including High Flow Catalytic Converters where applicable, ensures that each exhaust system meets the specific needs of the customer.

Vehicle Fitment:

• 2002-2007 Subaru Impreza WRX
• 2004-2007 Subaru Impreza WRX STI
• 2006-2007 Subaru Impreza WRX TR
• 2006-2007 Subaru Impreza WRX Limited
• 2007 Subaru Impreza WRX STI Limited

but the point is

it's not as simple as just strap on a drain pipe and gains for days. A "quality" exhaust system maximizes performance gains by design.

Far more engineering goes in to the design of an exhaust system than many realise. From a performance perspective, there is a fine balance between exhaust back pressure and exhaust gas velocity. Too large a diameter pipe, and low down power and torque is sacrificed (particularly on naturally aspirated cars), too small a diameter or added restrictions and bottlenecks in the system, and the engine is unable to push gasses out of the combustion chamber efficiently, reducing power and torque. There are many other technical aspects such as 'scavenging effect' which are beyond the scope of this document.

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