Site Information

 Loading... Please wait...
  • Call us on 920-333-1532
  • My Account
  • Gift Certificates
  • Image 1
  • Image 2
  • Image 3
  • Image 4

Invidia Q300 Exhaust 12-15 Honda Civic Si 9thcivic Coupe & Sedan


Product Description

Invidia Q300 Exhaust 12-15 Honda Civic Si

The Invidia Q300 for the 2012-2015 9th generation Honda Civic Si. This twin loop stainless steel full cat-back exhaust system (downpipe back) has great quality, fitment and amazing sound at an affordable price. The exhaust diameter is 2.75 inches / 70MM, providing excellent flow for N/A or boosted applications. One of the most mature exhaust notes for the Civic Si. This is the most quiet exhaust you will find for the 9th generation Honda Civic Si, which carries a sporty & smooth tone that opens up under full throttle with a nice throaty growl. Paired with a great price and a high quality great looking angle rolled tip, this is an excellent choice for many. One of the most popular exhausts for the 9th generation Civics and for good reason.

Comes in sedan and coupe lengths in stainless steel tip only.

"One of the most mature sounding exhausts out, smooth and stealthy at normal rpms and a throaty growl at full throttle, this is one of the most popular exhausts out for the 9th gen Civic Si" -- HARDmotion Team

Mandrel Bent 2.75inch (70mm) piping
304 Polished Stainless Steel Design
Beautiful Tig Welds
Full Exhaust starting Downpipe Back (also known as catback)
Twin loop Muffler design (internal)
The queitest exhaust for the 9th Gen Civic Si

Sedan w/ stainless steel tip - Part #: HS12HC4G3S
Coupe w/ stainless steel tip - Part #: HS12HC2G3S

Available for Honda Civic Si:
2012 2013 2014 2015 Honda Civic Si (9th generation) w/ k24z7 motor

FREE Shipping USA 48 States

Product Reviews

Write Review

  1. great exhaust, great sound 4 Star Review

    Posted by on Aug 10th 2018

    This looks great, arrived on time, and sounds awesome. It doesnt drone at highways speeds below 70mph so thats great. The inside was dirty when it arrived but that wouldnt both most people. I cleaned it out with a large pipe cleaner before the installation. The welds look great. I have noticed the tip gets dirty fast but cleans up easy with a quality wheel cleaning product. The nuts and bolts provided are cheap so I'd buy your own. I snapped/sheared two in half and it was barely getting tight. Overall I'm very happy with the product and hardmotion did a great job too.

  2. Best place to purchase 5 Star Review

    Posted by on Jul 24th 2018

    Love my q300, these guys always have them in stock or you can even pre-order from them when the manufacturer is making its next batch. Got mine right away. Love the sound, best exhaust out. Great fitment, super good pricing.

  3. Awesome Exhaust 5 Star Review

    Posted by on Apr 19th 2018

    Q300 exhaust is one of my favorite exhausts, had it on my 8th and when I got my 9th gen I came right back to hardmotion for another. They always have these in stock when other shops dont!

    Great sound yet again, amazing fitment, beautiful build quality!

  4. These guys rock! 5 Star Review

    Posted by on Nov 14th 2016

    I emailed my questions about what exhaust they reccomend for a mature / easy going exhaust note that offers a good sound under hard acceleration. They immeidatly told me about this exhaust. Ordered it up, installed it in literally 45 minutes. Welds are amazing, fitment perfect, the sound is exactly what I wanted....nice sporty sound under regular driving, just so smooth and under hard acceleration a throaty tough sound! I was worried about my honda sounding bad....but this exhaust is perfect! price was insanely good too! Thank you!!!!!

Find Similar Products by Category

Click the button below to add the Invidia Q300 Exhaust 12-15 Honda Civic Si 9thcivic Coupe & Sedan to your wish list.