i was lookin on ebay about a resitor chip tht goes into the iat sensor n it says it will improve gas milage up to 15mpg n add 25 more hp.its like 10 buck on ebay.heres the link.http://cgi.ebay.com/ebaymotors/NEW-F...Q5fAccessories..anybody now if its anygood.

 

We have this type question pop up from time to time. Those 'magic resistors' are BS, k-rap, POS, etc. No need to spend $8.48 on a $0.25 part that does absolutely nothing.

 

alright... thanks for the help..

ive been lookin to add some horse power to my blazer..ive been lookin at cats n mufflers.anything else tht is cheap to gain hp.n what kinda exhausts for a 4.3 v6 blazer will make it sound deep n throaty.like realy mean soundin.

 

Take a look through the Headers, Intake, & Exhaust section.