Invidia Q300 Cat-Back Exhaust | 2006-2011 Honda Civic Si (HS06HC4G3S)



Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

Email -

Phone 1-888-627-3736

Fits Your:
FREE Delivery Expected by , when ordered within hrs and mins
Tip Color
Phone  Contact us for availability!
$695.10 $993.00Instant Savings of 30% ($297.90)

Earn  $13.90 In MAP Rewards!

2006-2011 Honda Civic Si Q300 Cat-Back Exhaust by Invidia

This is the Invidia Q300 Cat-Back Exhaust System. The Q300 is a highly coveted exhaust system among enthusiasts because it gives them everything they want in terms of a performance upgrade. You get premium fabrication using quality materials that are combined with machined welds. The design features very smooth radius bends with an increase in piping diameter to allow for an unobstructed flow path for the exhaust to escape. And the beautiful polished finish right out of the box will check all the aesthetic boxes to provide the rear of your vehicle with a pronounced look. The final result will provide the user with a nice increase in power and torque, and improvements in the throttle response. The most rewarding aspect is the race-inspired sound. From mild bolt-ons to full builds, the Invidia Q300 will change the character of your vehicle to make your driving experience much more enjoyable.


    304 stainless steel construction 70mm piping diameter Tuned muffler Cast flanges Premium machined welds Single polished stainless tip Smooth bends allow for an unobstructed exit path Creates a race-inspired exhaust note Exhaust hangers welded onto the OEM locations to make for a direct fitment Includes gaskets and hardware to make this exhaust ready for the installation


    Improves horsepower and torque Improves the throttle response Saves weight

Please Note: Sedans and coupes use different systems. Please select the correct part before you add it to your cart.


  • 2006-2011 Honda Civic Si

What's In The Box?

  • 1 - Exhaust System


  • Invidia's Limited Manufacturer's Warranty

Customer Reviews

No reviews yet