Skunk2 Racing 413-05-6025 MegaPower RR Exhaust System for 2-Door Honda Civic Si

It's loud, very loud, and probably the loudest, most powerful aftermarket exhaust for the 8thgen Civic. It's basically the same exhaust that Skunk2 used for its Compass360 Racing Civic Si but thicker at 76mm/3in. It allows for the best possible exhaust flow and top end power. You can tell by the resonator's smooth, thin shape compared to other thick ones that have a squared/"can," cylindrical shape. Especially with the Skunk2 Alpha race header, it's very loud/intolerable at 3000rpm or above during highway cruising. The included silencer won't work at those rpms but silences really well about 70%~ of the noise at lower speeds. The RR also doesn't rust being constructed from T304 stainless; trust me, 3 Midwest winters and running.

Ok, let me start by saying that if you want an exhaust for a street car... this is not what you want. Even with the insert in the resonator you will find the exhaust VERY loud. You will not be able to talk to the passengers in your car, you will not be able to hear the radio, and you will irritate every person on your block when you go to the beer store at 2AM.If you are looking for a performance exhaust for a track day car, this is a very good option. Easy install especially if you have installed headers. Stainless steel is fantastic because it doesn't rust and the bend and welding on this system is really first rate. Fits like a glove and uses the stock route and hardware. Beware! My 06 Civic SI with headers and this system at full throttle is 101 db at 50 feet. With the optional insert it lowered to 98 db. That's pretty loud for a street car.

The Skunk2 may be the best exhaust for the 8th gen Civic (in terms of sound), but it isn't as loud as everyone is making it out to be. The muffler still muffles the sound more than I'd like it too, although it is still decently loud (a deep tone). My original magnaflow exhaust had corroded right before the muffler, and without that muffler, the sound was amazing. The Skunk2 has taken away from that sound, unfortunately. This is where I am somewhat disappointed. Before, the straight exhaust was so obnoxious and loud with all the popping sounds from the engine firing, that I enjoyed it quite a bit. Now, the sound has been muffled and the popping isn't as noticable as the Skunk2 muffler is killing this.Don't listen to these reviews that say you can't listen to music nor hold a conversatiom with this exhaust. That's completely false. Again, this exhaust has a deep loud tone to it, and sounds fine with VTECH, but is not as loud as I had hoped for.Other than this complaint, the exhaust looks good and installed perfectly. It was only difficult removing the old exhaust as it had corroded overtime (95k miles living in the Mid-West). I don't believe the Skunk2 exhaust is worth it's price, but again may be the best you can get for the 8th gen Civic. I did do decent research before making this purchase, so I know that all the other exhausts would likely be a bigger disappointment for me, personally. I really enjoy loud cars.EDIT:After a month of use, I noticed rattling from time to time. Turns out the way the exhaust was designed, it runs against the rear coil over springs (refer to photo). This sucks! There's plenty of room where this could've been avoided in design. I really don't want to dock another star, but I will make it known through review. For the price, I'm extremely disappointed. My auto shop said they'd need to weld another hook to the frame to assist in pulling the exhaust away from the spring. Not doing that, so I'm stuck with the outcome.

I did a lot research for aftermarket exhaust for my 07 civic si coupe and finally choose this one. It's easy to install, no need for welding(if the original exhaust on ur car was in good attach with the catalytic converter not as me). It's pretty much the same tone as what i c on Youtube. It's loud during low rpm, but is fine on high rpm. If u drive daily under 3500rpm is ok, 4000-5000 range is damn loud with poping sometime.It's worth every penny and hope u guys enjoy it!

Your browser does not support HTML5 video.  This Skunk 2 Exhaust is awesome. I would recommend it!! Thanks to Skunk 2!!!Here my video(This exhaust is without the silencer)

Very fast shipping. The exhaust system was a very quick and easy install and a huge difference in apperance, performance and SOUND!! I love my new Skunk2 exhaust so happy i got it. Has a deep throaty race car sound to it and have already received many complements on my new system!

Loved it simple

My fiancé loves it!