I was wondering if there is anything i could do to make more power out of my 4.0. I was reading about the bored out throttle bodies and was wondering if these are worth my money. Also could i put bigger injectors in it? Any input would help.

 

You could put in bigger injects if you have lots of money, they are not cheap at all. I would do a high flow cat $115 , highflow catback system $140 , K&N filter, throttle body spacer.$80. You would still have way less into it than the injectors alone. I got all these parts from Summit Racing.

 

 

thanks alot. I was wondering how the throttle body spacer made more power?

 

In the November 2009 issue (this months) of JP Magazine there is a good write up on which mods add power and which are a myth.