improve performance on an 03 sierra

[chirojoe]

Been kicking around beefing up my 03 1/2 tons sierra. Exhaust, cold air intake, chips, helper springs and maybe something to calm down the side to side roll. I probably wont get all this stuff at one time. Anyone have ideas or experience with this kind of upgrade, and what is the best bang for the dollar.
thanks
joe

[thinkpaduser]

MY EXPERIENCE IS YOU CAN ONLY DO SO MUCH TO HELP THE PERFORMANCE OF YOUR 5.4L ENGINE. CHIPS HAVEN'T PROVEN MUCH TO ME IN A TRUCK THAT ALREADY RUNS GOOD STOCK SO UNLESS YOU WANT TO OVERRIDE THE FACTORY SPEED SETTINGS AND SHIFT SETTINGS THE CHIPS ARE NOT THE WAY TO GO. I HAVE TRIED JACOBS IGNITION COMPONENTS ON OLDER 350'S AND FOUND A LITTLE MORE LOW END TORQUE BUT STILL NOT WORTH THE COST. IF YOU REALLY WANT IT TO SCREAM ADD A SUPERCHARGER OR GO TO YOUR LOCAL SPEED SHOP FOR PERFORMANCE ENGINE PARTS (HEADDERS, INTAKE MANIFOLDS, CRANKS, ETC... ) I WOULD SUGGEST INSTALLING A K&N AIR FILTER AND MAYBE REPLACE THE MASS AIRFLOW SENSOR. THE "POWERRAID" THROTTLE BODY SPACER DIDN'T DO MUCH FOR MY OLDER 350 SO I WOULDN'T MESS WITH THAT EITHER. JUST INSTALL A SWEET SOUNDING EXHAUST AND DRIVE IT. DON'T WASTE YOUR CASH ON ALL THE LITTLE BS STUFF THAT WON'T MAKE MUCH OF A DIFFERENCE ANYWAY. MY DADDY USED TO TELL ME, "SON, YOU CAN'T PINSTRIPE A PINTO, IT'S STILL A PINTO." YOU CAN'T MAKE A 5.4L ENGINE INTO A 500 H.P. ENGINE BY PINSTRIPEING IT!

[thinkpaduser]

HEY, I FORGOT YOU ASKED ABOUT IMPROVING THE RIDE. I INSTALLED A SET OF EDELBROCK IAS SHOCKS ON MY '93 Z71. THEY WERE WELL WORTH THE MONEY!!!!!