EXPREME is the coined word which multiplied EXAUST (exhaust gas) and SUPREME (extreme). In EXPREME, the exhaust relation items (exhaust manifold / outlet pipe / front pipe / sport catalyzer) which took in the maximum engine development technology of our company are developed and announced. Through extensive testing, trial and error we have tried with various pipe sizes and combinations to find the best possible results for the highest possible performance in all RPM ranges. Here at Tomei we have 2 engine Dyno rooms dedicated for heavy testing and research and development. Day in and day out we just test and build daily with our passion. From running the bench testing it is the best way to find the efficiency of the engine through all power ranges whilst pushing the engines durability to the limits. All data is logged and tested for accruate testing and attention to detail on the products efficiency for finding the best results.
The 1st Version design had the targets of "Sharp throttle response" & "Sports engine enjoyment" true race exhaust sound. The new version 2 design has all those target aspects met with the additional target of increased power gains. The designs were made and time painstakingly tested both on the engine bench Dyno in a controller environment and on the car in real life uses in the Z Masters race series in Japan. With these tests we found to have excelled in additional performance gains from the previous 1st Version model. The equal length shows smooth torque results mid rage and the unequal length shows more power up high in the power band. The equal length also delivers a much better race engine sound. The unequal length shows room for power gains up top with more R&D. Increasing the exhaust pipe diameter is will increase performance gains but too large will cause power loss. We found after numerous tests that the 42.7mm size made best results.
With the new performance design layout it is hard to use the thermal bandage to control the heat in the engine bay. So for added performance gains we have also added a Titan Bandage and thermal protector and flexible thermal tube cover. These accessories are all included in the kit and help reduce performance robbing heat. For the optimum performance layout the pipe bends are designed to maximize exhaust flow efficiency. The merging section joint angles have all been flow tested and with the smooth pipe layout, performance is maximized with this bolt on kit.
Features:
- High Quality SUS304 Stainless Steel
- Lost Wax Casting which requires no welding
- Improved exhaust flow and performance
- Competition Ready
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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