How to Install Invidia Q300 Exhaust 11-16 Subaru WRX

Difficulty: Intermediate · About 75 min · Subaru Wrx

Install the named Invidia Q300 cat-back exhaust on a compatible Subaru WRX. The video title and description disagree on year range, so confirm the kit fits the vehicle and compare all supplied gaskets and adapters before disassembly.

Steps

1. Check the kit and support the vehicle

   Confirm the exhaust kit application against the car's model year and configuration; the source listing gives conflicting year ranges. Park on level ground, let the exhaust cool fully, raise the vehicle at approved points, and support it securely.

2. Remove the mufflers

   Apply penetrant to the muffler fasteners, remove the retaining bolts, and slide each muffler off its rubber hanger. Support the exhaust as each section comes free.

3. Lower the original mid-pipe

   Remove the spring-loaded mid-pipe fasteners and have a helper support the section as you release its hanger. Lower the pipe carefully without loading the remaining exhaust joints.

4. Position the replacement mid-pipe

   Fit the specified gasket and adapter pieces to the replacement mid-pipe, then loosely attach the joints and hang the pipe in place. Keep the assembly supported and leave alignment adjustment available.

5. Hang the mufflers and align the system

   Fit the mufflers to their hangers with the kit's gaskets and fasteners. Align the exhaust so it clears the body and sits evenly, then tighten each joint to the kit or vehicle specification.

6. Inspect the installation

   Check that every hanger is seated and the exhaust cannot contact the body, suspension, or wiring. Lower the vehicle, start the engine outdoors, and listen for leaks before driving.

Check your vehicle’s repair manual for exact specifications and fit.