Just got rid of my favorite short wide bed chevy (2000) for a 09 GMC Sierra 2WD 5.3L. After looking up the vin I found out the engine is a LY5.

My question is where to start on getting more power out of this engine. Currently this truck only has a K&N drop in filter and a Flowmaster cat-back system. Where should I go from here as far as bolt ons or any tuning tips to get more power out of this engine?

My plans are:
Hooker long tube headers & Y pipe with my current flowmaster 40's series muffler, not a big flowmaster fan but if what im going to use now.

Maybe a Hypertech programmer and a MAC Cold Air Intake..

What would you suggest?

Even little things like removing mass air screen or any tips you know of would help...


Thanks alot,

Ryan