Im a little worried over this, i have just had my stage2 and Dpf delete done and can hear my turbo now through the exhaust, is this because i've had the Dpf delete done??? Its like a whistling noise, mayb like a siren but i'd say whistling mostly
I take care to never stop straight after driving i let it tick over for around 45 seconds @ least + i never drive it hard from cold.
mines a 170 fr pd with 62000 miles on the clock. do they use the same turbo as the 140 pd???