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      07-20-2019, 06:46 AM   #10
SapphireM5
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Drives: 2013 M5 Sapphire Black
Join Date: Feb 2017
Location: New Jersey

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You are guessing at this point, I know you want to find out ASAP what's wrong. First you need a compression and leakdown test performed. These will point you in the right direction. Start with those and go from there. GL!
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'13 Black Sapphire Metallic - BPM Stage 1 Tune - RPI Exhaust - KW HAS Kit - 12mm spacers all around- Carbon Fiber front lip - High Kick Trunk Spoiler - Rear Roof Spoiler - IND Kidney and Fender Grills - 20% Tint all around 50% Front Windshield - PPF
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