last night i lined up with my buddies 04 silvy both trucks have the z-71 package with the 5.3. he smoked me i never even had a chance is there a major difference between our engines for the years?
his mods 04 silverado (everything is stock unless said otherwise) mileage: 120k
-intake
-blowmaster catback
- np tune
my mods 99 silverado (everything is stock unless mentioned) mileage:180k
-intake
-lpp longtubes w/ cat delete 3in flowtech terminator splitting to 2.5in duals.
-corvette servo
-np tune
im just looking for an explanation
also i hope im posting in the right section if not im sorry!