The whistle is the trubo spooling up.

If you do not want the new turbo, I'll take it off your hands! If the old turbo is functioning properly, you could ask the dealer to give you the old part, then sell it on ebay, or keep it for a spare.

__________________
RRGrassi


70's Southern Pacific #5608 Fairmont A-4 MOW car

13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.

99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K

90 Dodge D250 5.9 Cummins/5 speed. 400K

Gone and still missed...1982 w123 300D, 1991 w124 300D