exhaust manifold


Car model: RX-8
Model: SE3P
Selling price$1,189.00

Product information

*It may not be possible to install it depending on the grade and year even if it is the same car model. Additionally, additional parts may be required for installation. Please be sure to check here for detailed compatibility.


■Exhaust manifold
Equal length 3-1 layout aimed at increasing torque from medium to low speeds. The dimensions up to the convergence part have been made longer than in mass production specifications, and the angle of the merging part has been narrowed to prevent the blowdown phenomenon (exhaust gas backflow) that occurs at high speeds. Improves accelerator response. The appearance of SUS304 stainless steel made with craftsmanship is also attractive. >>More details

・Completely equal length 3-1 layout *Manufactured by Maxim Works


Completely equal length layout that increases exhaust flow velocity and improves torque.

Let's take a look at the work of an engine.Basically, it involves the process of converting the chemical energy contained in gasoline into thermal energy, and the process of extracting that energy mechanically. In terms of power performance, it goes without saying that the front-end process is important. And what controls this is a series of air flows. That's why the design of air inlets and outlets requires fluid mechanics. So, to get to the point, in that sense, the exit is actually more difficult to design. The pressure and temperature are high, and of course the flow rate is also fast. That's why there is so much resistance. On top of that, there is also the difficulty of pulsation due to the timing of the explosion. These problems are particularly concentrated on the exhaust manifold, which is located directly behind the engine. Therefore, the question is how effective the tuning is.
Our basic design is a 4-2-1 (3-1 for RX-8) layout that aims to increase torque from low to medium speeds. Taking into account the rotational speed and overlapping characteristics of each individual engine, the distance to the assembly part has been made longer than in mass production, and the lengths have been made equal. Furthermore, the angle of the merging section has been narrowed to prevent the blowdown phenomenon (exhaust backflow) that occurs at high speeds. In addition, the connecting part to the first engine has a radial shape, increasing the exhaust flow velocity and achieving output characteristics that enhance the engine's capabilities. The functional beauty of stainless steel is also attractive, as it is made using craftsmanship such as fully machined flanges and back shield manufacturing using TIG welding.

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