Invidia 2015+ WRX/STi 4 Door 80mm Single Outlet Full Titanium Cat-Back Exhaust

This Invidia cat-back exhaust system is made specifically for the 2015 and 2016 Subaru WRX and WRX STI 4-door models. It replaces the factory exhaust from the catalytic converter back, featuring a large 80mm single outlet design. The primary goal here is to give your WRX a more aggressive exhaust note and potentially free up a bit of horsepower by reducing backpressure compared to the stock system.

What really sets this system apart is its full titanium construction. Titanium is significantly lighter than stainless steel or aluminum, which can help reduce overall vehicle weight. It's also known for its strength and resistance to high temperatures, making it a great material for performance exhaust components. The 80mm piping and single outlet design are tuned to produce a distinct, sporty sound that many WRX owners look for, without being overly raspy or droney at cruising speeds. This system is designed to bolt directly onto the factory connection point after the catalytic converter, making installation more straightforward.

When installing a cat-back exhaust like this, you'll want to ensure you have the necessary hardware, though this system is designed to utilize most of the factory mounting points. The difference in sound and the weight savings from the titanium construction are the main benefits you'll notice. It's a well-built system that's popular among WRX owners looking to enhance their car's performance and auditory experience.