There has been a recent negative smear campaign about the power claims of our EVO8 intake manifold. One of our competitors has made false accusations that our EVO8 intake manifold actually loses power. We can whole-heartedly attest to the fact that this is not the case. All of our intake manifolds have been proven time and again to make power on many different applications. The EVO8 is no exception. It has been proven not only by us, but our customers as well. It is also highly suspicious that they have absolutely no proof, and we have provided our dyno sheets.

As you can see in these two independently tested dyno graphs, the manifold is doing exactly what is supposed to do. And there are many more dyno sheets. You can see they are both slightly laggier than stock but they more than makeup for it on the top, where it helps carry the torque. This means the VE has increased in those areas and if the engine has picked up torque in those areas hp will increase as well at the higher rpm.

Here is the first cars mod list: 03 EVO8 Stock Motor Stock Cams Stock FMIC SBR 30R Kit Stock ECU Fuel System Stuff

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The second is from an AMS 37R kit on an 04 EVO, just low boost to break the motor in and get the car drivable. Switched from a stock intake to a Magnus intake manifold.

There is almost a 90 hp difference at 8000 rpm on the 37R chart, at 7000 what looks like only 20 hp. This is a textbook dyno graph of what happens when you install our intake manifold over the factory unit.

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Here is a note from one of our customers that completed back to back logs of our EVO manifold versus the stock intake:

With no changes in the tune in the ECU with O2 feedback turned off I had the following results... Below 2900 RPM there is no significant changes in A/F ratio. From 2900 RPM to 4000 RPM the A/F ratio is richer signifying a lower amount of air flow. From 4000 RPM to 5700 RPM the A/F ratio is slightly leaner signifying slightly better air flow. From 5800 RPM to 7800 RPM the A/F ratio is significantly leaner showing much better air flow. Another interesting result; spool up is slightly better. Above 7300 RPM the boost pressure was falling off on the ported stock intake manifold, but with the SMIM the boost pressure did not fall off. Here are two screen shots of the charts. Keith

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At Magnus, we have been racing for over 12 years with Mitsubishi's, setting records, broken records, and pioneered innovations for the racing community. We pride ourselves in producing cutting-edge performance products. We have often set the bar for the Import after market industry, a bar that our customers have come to expect of us, and one which some of our competitors are now trying to challenge with false accusations. It pains us that we have to waste time defending ourselves from one of our competitors rather than fabricating our race parts.

More comparison charts will be posted as we receive them.

Marco Passante