The infamous Wankel Rotary engine and its unreliable glory are just one of the few things that seem to draw people to the RX 8. The Mazda RX 8 has some attractive curves and quirks, like the half and half door which opens the rear suicide doors that swivel backward for rear passenger entry. The RX 8 is an exquisite coupe, its optimum size and weight make for a great driving experience on the streets or with a few modifications, the track.
The engine, no matter how unreliable it may be, is one of the most responsive on the market for its time period. On stock components, the RX 8 produces 235 HP and 165 lb-ft torque, this makes the RX 8 soo much fun all the way to redline. The tiny 1.3L R2 or Rotary engine enables it to be perfectly balanced with a balance ratio of 50-50. It is a top pick for many tuners for so many reasons. It’s relatively affordable and has a large availability of aftermarket parts available. combine that with the tuning possibilities and you got yourself a solid car.
Unfortunately, the factory exhaust system is not quite up to par and an aftermarket Mazda RX8 exhaust system is strongly recommended so you can hear that true rotary sound all while making some extra power.
Now, we all know that performance exhaust systems allow the air to flow in and out the engine more efficiently, resulting in increased horsepower and torque figures. So, we won’t tell you things you already know and jump to what you came here for, the best Exhaust systems that are available for your Mazda RX 8.
Agency Power Exhaust System
Agency Power is a brand that many tuners know or have heard of. Their products are consistent in quality, the materials used are high quality and better than some of the other brands available in a similar price bracket.
The Agency Power Mazda RX8 exhaust system is made with T304 stainless steel with 3-inch diameter pipes that are TIG welded. This allows the exhaust gases to flow much more easily enhancing the performance of the car. This system features a dual muffler setup unlike the single muffler on the OEM exhaust as well as dual titanium exhaust tips that are 4 inches in diameter, the stock being only 2.5 inches.
Agency Power has intricately designed this exhaust system to house all the OEM O2 sensors as to not trigger any check engine lights. The system comes with hangers for the setup and is a 100% bolt-on system that is easy to install.
This exhaust system is targeted towards drivers who want a loud exhaust setup. However, it does have a sweet, deep tune in the mid-range. The crackles and gurgles from the exhaust are reason alone to purchase this system.
Greddy Spectrum Elite-Supreme SP
One would have to be from outer space if they are not familiar with GReddy. They have built themself a large following in the aftermarket community being known for their quality products and very reasonable pricing. What more could a gear head want!
From Greddy, we have two very similar exhaust systems. Both of these Mazda RX8 exhaust systems are a dual muffler set up with 4-inch exhaust tips and are entirely constructed from high quality 304 stainless steel. The entire system is professionally hand-welded to keep up to Greddy’s high standards.
The only difference between the GReddy Spectrum Elite and Supreme SP is the piping diameter, which is a tad bit bigger on the Supreme by 3.5mm or 0.1 inches. This size difference is the reason why the Supreme SP produces a louder and more powerful sound because of the increased exhaust flow.
The prices for both of them vary from vendor to vendor, but generally, there is not much of a price difference. Like twins, these systems might look the same but they each have very different personalities, one is subtle while the other is punchy. These GReddy exhaust systems are best for the kind that want refined and tonal exhaust sounds.
The systems are both bolt-on and fit the same as the OEM exhaust. They have the proper nodes to connect to the factory attachments and sensors. The installation process is simple due to the excellent fitment of the pipes.
Apexi Hybrid Megaphone EVO
APEXi has been around for about 2 decades now, originally supplying exhaust systems and intakes. Today they produce a variety of products such as suspension components and fuel system management controllers. APEXi is among the top players in the tuner market manufacturing premium products all backed by great credibility. Back in the day, most bolt-on systems were supplied by APEXi which attributes to their present popularity.
Just like the previous exhaust systems, APEXi uses 304 grade stainless steel in the Megaphone EVO. The exhaust system is rightly named so, it is among the loudest exhaust systems in the market. It crackles, it pops and is loud enough to make a statement in the crowd.
The Megaphone EVO features 4.1inch exhaust tips which are simple and not flashy in the visual department.
The biggest drawback of the system is the price tag attached to it. The system is undoubtedly one of the best Mazda RX8 exhaust systems on the market. If you are looking for the best of the best you have found it.