Originally Posted by B737

Originally Posted by Mazspeed

There are some that also need ECU support that do, do things, but it has to have tuning of the ECU to do anything. I know of a few that are effective in that regard. You can't just plug in a chip and expect it to work without changing airflow, timing and fuel. This race chip does none of those things in the ECU. The ECU controls everything as far as engine management. But as far as dyno stuff goes, this always needs to be verified by a 3rd party type of thing. Even with "Dynojet" those results can be manipulated by plugging in different correction factors. I can make a dyno give a 30 hp increase without doing a single change to the car by imputing different correction factors, so that's why a reputable 3rd party test is critical for tuning and or increases with any product. Every time you see someone claim a product is making more hp and show some dyno run means absolutely nothing to me. Not only do you not see a side by side comparison with any of race chips videos, but that the dyno can be manipulated to show gains where their were none.