I have a 04 5.3L v8 with triple dog downloader, JBL headers, flomaster 40 series, and K&N air filter...just wonderin if anyone has any ideas to increase my horsepower that doesnt cost me $1000+
Thanks!

 

Try running synthetic oil?

John

 

ill try that thanks, also thinking about picking up airraid throttle body spacer, iv heard alot of good things about it.

 

throttle body spacers do nothing on 96+ trucks. get rid of the downloader and get a custom tune from either nelsonperformance.com or blackbear performance. you may not get a but load more hp over the downloader but removing 80% of the torque management will make a big difference on how the truck runs.

most handhelds are lucky to get 10hp to the wheels on 87, custom tunes are usually 15-20hp to the wheels.

 

alright thanks. What about injectors? worth it?