pcorssmit... there is a distinct whistle heard in the cab with the Pyscotty Airbox system. The higher the boost, the higher the pitch of the whistle, kinda like a jet at takeoff. It's not real loud, but you know it's there. I think it is one of those sounds that you either love or hate, I love it, the wife hates it, LOL. I never had the ring out of my stock turbo, but now have a HX40. Hope this helps. I would suggest taking a ride in a "scotty equipped Ram" before you purchase.
Scott W.
White 2001. 5 3500 ETH/DEE 4X4 Quad cab SLT,tow package and camper prep,Husky liners front and rear,DiPricol pyro,boost and oil temp gauges,Edge EZ,Psychotty air,Bully Dog stage III injectors,ATS 3 piece manifold,HX40 turbo,4" BD exhaust,4" BD E-brake,McLeod clutch,Mallory 4150 lift pump,Mag-Hytec rear,Mopar tonneau,Lund bug shield,PM tractor utility back up lights,Penda bed mat and blow by bottle is bye bye !!! I love the smell of diesel in the morning, it reminds me of... . VICTORY !!!
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