2017-2018 Silverado & Sierra 1500 S&B Cold Air Intake with Dry Extendable Filter Review & Install 

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This fits the V6 4.3, you just have to plug up the extra hose connection.

That engine needs some love.

I noticed the tube coming from the filter to the throttle body. Smaller on one end, larger on the other. What is the theory behind that? I would rather it be the same size throughout or larger on the filter side. I'm thinking of volume flow.

Any tuning required after installation??

Any tuning required after installation?