I got one to dress up the engine bay. They only show real improvements on older cars with corroded wires that no longer ground properly. It may or may not help with the shifting effects on the AT, but it certainly won't make it worst. Installation is pretty easy except for one spot. Pretty straight forward to install with a few hand tools.
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[09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R]
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