HKS Sport Exhaust Catback | 2003-2007 Mitsubishi Evo 8/9 (31013-BM001)

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$510.00 $600.00Instant Savings of 15% ($90.00)

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2003-2007 Mitsubishi Evo 8/9 Sport Exhaust Catback by HKS

HKS's Sport Exhaust Systems are designed to reduce backpressure and increase exhaust flow for greater peak power and a broader torque band. Each Sport Exhaust application utilizes a specific muffler design and shape along with the appropriate piping diameter to maintain low-end torque while maximizing high-end horsepower.


  • Constructed from High-Quality Materials


  • Louder and More Aggressive Exhaust Note
  • Increased Horsepower Output

Please Note: Fits USDM bumper only.


  • 2003-2007 Mitsubishi Evo 8/9

What's In The Box?

  • 1 - Sport Exhaust Catback


  • HKS' Standard Limited Warranty

Customer Reviews

Based on 14 reviews
GREAT exhausts!

This is a great exhaust if you are looking for an OEM+ model!

Low tone when start up and under 2k RMP

Past 4K RMP really opens up and lets you sound your Evo!

Only down side is it does pop out a little more then linking from the rear of the car. Nothing crazy maybe 2 inches too much!

But a Bang for buck exhaust with a simple install.


Great fit. No issues bolting on. Love the OEM look especially here in California

Fantastic 10/10

Perfect sounding funny exhaust has a nice growl at cold start. Cruising around gives you a nice tone without bothering people. When you get on it it opens up quite a bit. Perfect exhaust for someone looking for an “adult exhaust”. 10/10 love it and it’s JDM :)

Dan Z
HKS CatBack

Perfect figment, got it overnight without asking for expedited shipping. Sounds great.

Great OEM+ exhaust

I got this mainly to increase the sound and flow while still maintaining a stock appearance. It looks a lot like the OEM exhaust, so much so in fact my wife couldn't tell the difference. Fit and finish is excellent, and all hardware was included. Like others have mentioned, the tip will need to be cut a few inches to fit flush on a JDM rear. Sound is excellent. At idle it's almost stock, and cruising you can hear the faint "hmmm". If you get on it though, it really wakes up. I didn't want something obnoxiously loud like most Evo exhausts are, so this fit the bill perfectly. Great price and shipping from MAP as well. Got it literally 3 days after ordering, and I'm in CA.