I am thinking about adding a TBI spacer to my 06 HEMI. I have already added K&N cold air intake and I have MagnaFlows on the rear. Would I receive any HP gains or would I really be throwing away my money? Any thoughts about this would be great!

 

biggest WASTE OF MONEY ever, do not buy one, you dont need to waste money on one when u could buy gas with that money or better yet a real mod, the spacer will only help a carbureted motor, we have EFI!!

 

Cool thanks, thats what I needed to know!

 

I put one on my '03 4.7 and there was noticable power gains.

 

the gains are all in your head. a university did a study by giving a certain amount of people a product to put on their cars that didnt do anything at all. all of the people installed it on their cars and then most of them reported better gas mileage or hp because of it. so my point is that an increase can be all in your head. i believe somebody on here had dyno sheets of before and after installing a tb spacer and the numbers went down after he installed it. the idea behind it is to "swirl" the air (thats what the grooves in it are for) and get a better A/F mixture. but how can swirling the air going into the intake really cause a better A/F mixture on an engine where the fuel doesnt meet the air until the cylinders? on a carbed engine, yes it will work, a little. on a fuel injected engine, no its a waste of money. i had one and took it off a few weeks ago and my gas mileage went up from about 11-12 (mostly city but some highway) to 12-14 (mostly city some highway also).