L84 Engine Mods

[Carrico-Silverado]

I have installed a S&B Cold Air Intake, Range DFM Delete and the Corsa CatBack exhaust system. Looking for some other options besides a Turbo or Supercharger to get some better performance. 
 

 

[Chips]

2 hours ago, Carrico-Silverado said:

I have installed a S&B Cold Air Intake, Range DFM Delete and the Corsa CatBack exhaust system. Looking for some other options besides a Turbo or Supercharger to get some better performance. 
 

 

Did you notice a difference from the S&B?

[TRKLGND]

Without a tune none of those will add any power.  HP Tuners can tune the ECM but it is EXPENSIVE.  It would have been cheaper to get the 6.2 then to have your 5.3 tuned.  No joke, it is that expensive.

[Gangly]

21 hours ago, TRKLGND said:

Without a tune none of those will add any power.  HP Tuners can tune the ECM but it is EXPENSIVE.  It would have been cheaper to get the 6.2 then to have your 5.3 tuned.  No joke, it is that expensive.

Incorrect.  The fuel tables will still adjust accordingly and the computer will learn long term trim values, but they will not exceed stock parameters.  You will get more power and probably see/feel a noticeable difference in the truck with CAI intake and catback exhaust, but without a tune you are not going to see as much of a gain as you could with a tune.  The tuning aspect really comes into play when you start playing around with intake manifolds, headers, cams, etc. things that will significantly alter the volume of air coming into and out of the motor.

 

Bottom Line

Can you modify the trucks without tuning them? YES

Does a tune significantly help? YES

Will you have any issues if you don't adjust your fuel tables? No, as long as they aren't significant modifications.