Throttle Body Port and Polish on a 2006 Chrysler 300

Throttle Body Port and Polish on a 2006 Chrysler 300. Turned out well, it was my first one ever done so it should go way easier next time. Car drove perfect, no issues at all. I didn't notice a horsepower Boost but the throttle response is quicker for sure.

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Spare 2-3 hours, handy with a dremmel? Increase throttlle response and gain extra hp doing this mod on your WRX Sti...Suggest intially protecting top of throttle plate with gaffa tape while porting throttle body, gaffa tape coolant as well as vacuum holes and terminal plug areas before you start. Knife edge WOT side of plate only and take care not to damage or nick edge of throttle plate or idle speed will be affected. Don't port below throttle plate or at the close off area. CRC unit before install and enjoy. And don't rush it...

Throthle body porting with my DIY CNC! -See my other videos for details about the machine -Honda D16Y8 engine throttle -Full carbride 1/2dia. endmill -About 15 000 RPM -6 inches/minute (IPM)

How to clean a throttle body and Idle air control valve (iac)
*** PLEASE READ *** In this video demonstration, I show how to get to, remove, clean, and replace the throttle body and idle air control motor (aka IAC) on a 4.2l ford motor. This procedure is the same for any fuel injected vehicle. * * * Check out my website * * * The vans require removal of alot more stuff just to access the throttle body. A dirty IAC can cause a rough idle. A dirty throttle body can harm performance and cause rough engine operation. When the throttle body or iac is removed a new gasket must be used to properly seal the connection to the intake. GM idle air motors are generally mounted on the throttle body and can be cleaned without removal from the throttle body. This means one less gasket and a lesser chance of creating a vacuum leak. The ford throttle body had a note on it that said it was not to be cleaned because the coating on the throttle blade might be damaged. Thats fine for a new car but that has to be disregarded when working on something that has some miles on it. Subscribe to my channel. * * * Definitions: * * * MAF - Mass Air Flow sensor - Monitors the amount of air the engine is intaking. IAT - Intake Air Temperature - Measures the temperature of the air the engine is intaking. IAC - Idle air control - Controls the amount of air the engine is intaking while it is idling. Throttle body - Responsible for regulating flow of air into the engine as you press the gas pedal. TPS - Throttle position sensor - Tells the computer how far you are opening the blade in the throttle body so it can add more fuel to compensate the added air. * * * Visit for more! * * * * * * Visit for more! * * * * * * Visit for more! * * *

Ported Throttle Body Fail
I think it was a poor port, and the blades don't fully close correctly, and actually instead, get stuck near closed position.