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If you've upgraded your Duramax LB7 engine, chances are your stock wastegate actuator isn't doing the job. Higher than stock levels of boost pressure will cause your stock wastegate to stay open meaning less power for you. Banks Power's solution is the Big Head Wastegate Actuator, available in many of their kits, this actuator is designed for higher boost levels which allows your turbocharger to come up to peak boost more quickly and allows the boost level to be maintained.
Designed to keep your turbo working to it's full potential, the BigHead Wastegate Actuator from Banks Power doubles the diaphragm area and spring pressure of your stock part. By keeping the valve sealed longer, BigHead allows you to achieve a higher peak boost, sooner. At peak, your Bighead will open the wastegate and hold the position for precise boost control. All this means crisp acceleration and more mid-range power.
- ManufacturerBanks Power
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Does this actuator require me to tune my engine??
You would probably need to run a boost fooler for sure. But would not require a tune no.
Would this waste gate actuator work with my stock engine and turbo configuration? I am looking to change out my stock waste gate actuator and add some performance simultaneously.?
Yes it would work with stock engine and turbo, you should add a boost fooler for proper operation as well or the truck may still try and defuel if it sees too much boost. SNA