this is for a friend he IIRC its a 93 6.5 3500, all stock. he wants to be able to hear his turbo whisle. i dont know a thing about 6.5's so a lil help would be great, thanks

 

straight pipe it

 

Straight pipe it AND put stacks on it. 5 or 6 inch outta do.

 

he wont do stacks, he makes fun of mine, ill talk to him about it and ill post with results.

 

put on a straight pipe and since its a 93 you need to take the snorkel out of the airbox. its yellow and is verys restrictive. but since its a 93 it has no maf sensor so you can just put on a universal filter on there and eliminate the whole air intake