I'm going to change my stock throttle body but do not know what is the best for my truck, 1998 ram 5.9l 2wd, I have a trailer that I tow
so I don't think a 52mm would be good, I will also replace my air intake with a Mopar performance Air filter.Any one with idea's

 

dan at fastman recommends the 50mm if you are geared more towards towing.

 

Yep, talk to Dan he will give you the help you need. mention the forum and he will give you a discount.

 

Based on Dan's recommendation I also run the 50mm on my 5.9 due to towing.

 

Thanks all for your input, I don't think I can get a fastman 50mm
here in Vancouver Canada, does any one now. If not what would be a
good brand to buy.

 

I am sure Dan could ship it to you there. Check his website: http://www.thefastman.com/

His price is also very good. I was in his shop when he built mine so I can personally say he does an outstanding job.