Faint whistling changing up the gears?

Armitageshanks

Active Member
Feb 20, 2007
143
0
Not really a problem ,

Just wondering what the faint whistling was when im changing up the gears. its only audible when the windows are down. Sounds really nice! Like a tame dump valve i guess.
I own a 2002 tdi mk4
 

Armitageshanks

Active Member
Feb 20, 2007
143
0
So this is the turbo bit spinning is what ya telling me. I had a Punto turbo diesel before but it sounded like a tractor, so any whistling would be drowned out.
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)