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  1. Car running better without MAFs

    E39 M5 and E52 Z8 Discussion
    Work that's been done: Dinan throttle bodies+velocity stacks Evolve 4-1 headers Silicone vacuum hoses and brass barb fittings TB synchronization Existing mods that might have an affect: Dinan CF CAI with larger MAF housings IATS relocation Stock tune Problem: With MAF's plugged in, car idles...