So, i was thinking about modding my 3.7 to try and squeeze more power out of it. I already have a custom exhaust system and I plan to get a K&N filter here soon. I may also look into a new throttle body, but other than that I cant think of anything or find anything else aside from swapping to a 318. What do you guys think, Im sure someone on here has heard of or had experience modding a 3.7

 

tuner of some sort, my choice would be SCT. efan, highflow cat, 180tstat

 

Hands down, the best bang for the buck is the Efan. Check out blown287 write up on installing the chevy HHR fan. I am speaking from exp, as I also have a 3.7L. Also, cold air intake, colder spark plugs (cant remember the PN), and a 180 stat. Some people have done the power wire although I am not sure how much that helps. As of right now, there is no tuner for our trucks, unless you check out Hemifever.com. He is the only one I know of who can tune for us. He said he has tuned a 3.7 and gotten 14+ HP out of it. The efan will give an extra 10-15hp. The other mods, I am not sure of. If you browse around on here you will find all the modding info listed above.

Where in ohio? I am in cinci!

 

This is the post of Blowns efan intsall: https://dodgeforum.com/forum/3rd-gen...installed.html
I had never bought anything off ebay, but it works.

 

Thanks a ton guys, I will have to check out the efan

 

i second the efan. I put in a flex-a-lite. Couldnt tell a difference in power but the mpg boost was noticable. Catback and CAI i could feel the power gain although not tremendous