Mine's gotta be the whistle of the turbo and the good ole shake & rattle when you shut it off!

 

It's a Cummins and bought and paid for itself several times over. Can't say I have one thing that really sticks out. But like you I do like the whistle of the turbo spooling up and spooling down. I've had people ride in my truck and say it sounds like a damn jet

 

My most favorite is listing to the turbo whistle down thru the stacks after I shut down

second favorite is listin to the exhaust brake

 

the motor, cup holders (best in the industry), whistle of the turbo and the little wet spot the truck makes me leave in my seat when I stomp on it

 

definately the turbo noise is a huge plus, plus i think the thing i like the most is just havin a diesel and people come up to you to talk trucks or come up and ask you a question and they are just amazed at what you say it does, especially the fuel mileage question that always makes em leave with wider eyes

 

Vent windows.

 

The turbo for sure, even though it's an after market, and the sound of a semi-straight pipe exhaust. Can't forget about the endless supply of power!!

 

i love the reliability first and formost. its does what i need/want everytime its told to. second has to be the massive turbo whine followed by the earth moving torque setting me back

 

I love the sound since I put my stacks on. I was kinda upset when my turbo went on cause it changed it up a bit but it's all good now and I am getting used to the turbo whistle too. I just love the sound, and she's purdy too.

 

I was dating a gal that lived about 2 hours away and one time I was down there and one of her friends was riding with us. At the time I had an Amsoil BHAF on it and her friend look at me funny and said " Why does your truck sound like it has an air leak?"

Definitly the turbo whistle. I also like the fact its a manual because in every gear in pulls HARD. There is always the breif respite when your shifting the gear but as soon as the clutch engages again and I floor it and it pushes you back into your seat.