Thjbmw76

Anybody have a shop or know someone who can install/code injectors, exhaust, racing down pipes. I have an 2008 535xi and want to start modding the car but cannot find reasonable pricing. example i see videos all day on youtube of such items getting installed out of my region for a few hundred bucks but the few places that have quoted me 1k to put my down pipes on, 850 to install my index 12 injectors and new spark plugs. I am supplying all parts and the installation quotes seen extremely high!