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Jb4/procede/cobb you won't be disappointed with either! And you can set them all to stock so the Mrs won't notice lol
I did the walnut shell blasting at around 68k miles.. I did not have that much carbon buildup (it's really only an issue if you idle the car a lot). I definitely recommend it for smooth idle and smooth acceleration
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2008 335xi Jet Black// Coral Red
VTT Stage 1+// Procede V5//VRSF DPs//AMS FMIC//KW V1//M3 Sways & Sub Bushings// Alpina AT flash
Apex EC-7//Michelin PSS//Dinan CAI |