Invidia Q300 Cat-Back Exhaust for 2017-2021 Civic Hatchback

Invidia Q300 Cat-Back Exhaust for 17-21 Civic Hatchback

If you want an exhaust that looks right and sounds grown up, the Invidia Q300 Cat-Back Exhaust setup is a solid pick for the 10th gen hatchback. This exhaust features a triple titanium tip design, and it fits the 17-21 Civic Sport and Civic Sport Touring chassis. You get a deeper tone without the constant drone that makes you hate your own commute. We run these exact parts on our own cars because it hits that sweet spot between fun and livable.

Invidia uses a flat-bottom muffler on the Q300. The idea is simple, it tucks up cleaner under the car and helps airflow under the rear at speed. Will it turn your hatch into a wind tunnel hero? No. But it does mean the muffler sits nicely and you do not lose ground clearance like some bulky cans. The piping stays smooth and consistent, so you get a freer flowing performance exhaust without the raspy, hollow sound like cheaper counterparts.

This system uses stainless steel, specifically a Honda Civic SUS304 exhaust with polished finish and mandrel bent piping. Invidia also calls out CNC machine made flanges and robot TIG welding in their build details, which is what you want if you drive the car year-round and do not want leaks or crusty fitment after a couple winters. Power wise, think typical cat-back results. The Q300 torque & horsepower bump shows up more in response than peak numbers on a stock car, and it stacks better once you add an intake and tune.

Key Features

• Muffler Design: Flat-bottom muffler for a cleaner tuck and better underbody clearance.
• Material & Build: Honda Civic SUS304 exhaust, polished stainless with mandrel bent piping, plus CNC flanges and TIG welded connections.
• Sound & Performance: Deeper, sporty exhaust feel, not a tin can. Expect modest gains from a cat back, more noticeable with supporting mods.
• Fitment: Direct fit for 2017 to 2021 Civic Sport and Sport Touring exhaust applications.
• SKU: NVD-HS17CHB7Q33ST