THinking about the Stillen valve body upgrade on my 05.
How many of you have it and do you like it?
Would you do it again if you bought a new car?

 

There have been recommendations to go with the new upgrade from SGP (I think that's the name). Apparently with Stillen, the TCM corrects for the increased pressure over time and shifting returns to "normal". Just what i've read by searching though...

 

The manumatic mode in the stock 2005 I feel is way better than the manumatic mode of my 2003.5 with the Stillen Valve body. I think the stillen valve body was a waste of money. The 05 performs well.