I've cleaned them as well.

 

Good stuff. My service engine soon light just appeared yesterday and got codes pulled up. Two showed, P0171 Fuel System Lean Bank 1 and P0174 Fuel System Lean Bank 2.

I have a 08 5AT w/ Stillen Gen 3, Motordyne ART Pipes, and MXP True Dual. Going to try this tomorrow and hope that the light goes away.

 

I'd also clean your MAF's while your at it. There is a DIY on here about cleaning your TB as well.

 

plus one for cleaning MAF as well, the stillen g3's come from the factory filthy inside, causing issues with the MAF eventually