Ever notice how your car always seems to drop boost from 5-6k rpms ? Have a boost controller, and notice how it doesn't matter how high you turn the boost up too, it always falls back down to 13-14 psi ?

This piece is what you need. You see, the factory wastegate actuator is a very weak piece and not only begins to open at 4 psi, but it cant hold the wastegate closed very well on higher boost settings. This piece, is designed to not open until 14 psi, so not only will it hold boost better, but it will give you more consistent, non drop off type boost drops at higher rpms like the factory one does as its much stronger.

NOTE:AGP is now shipping their wastegates with a preinstalled 8lb spring(which works fantastic with stock ecu, and Diablosport tunes), and they include a EXTRA 12lb and 19lb spring in case you ever decide to increase the boost and want higher boost levels. For most SRT4 owners, the factory installed spring will work just fine though.

Note: From around 2005 to around 2015, AGP engraved their logo onto the wastegate body. That was discontinued sometime around 2015, and they are shipping the wastegate without the engraving now.