Power mods on Sierra 1500 CC with 5.3L
I have an 04 GMC Sierra 1500 crew cab with the 5.3L engine and 3.42 gears. The previous owner added 20" wheels and tires and a flowmaster muffler, otherwise the truck is stock. My Outback 30BHQ is a...
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Will these changes help my towing ability?
No. You could even add a supercharger but that will only increase power, not towing ability. There is much more than just power required for good towing ability. You'll be lacking in payload, axles, suspension etc, as with most 1/2 ton trucks trying to tow that size and weight of TT. You're probably looking at close to 9000lbs once loaded up so even if you could pull it you're likely over several of the trucks ratings.
