I have a 08' Sierra Denali CC with these bolt ons volant intake,4:11 gears,160 degree thermostat,ngk tr55 plugs and a cat-back magnaflow exhaust. I get my truck back from being tuned and it's only putting out 315hp/342tq. Is what I should expect or are these numbers low for what I have as bolt-ons? Thanks for your input in advance.

 

If its a mustang dyno probably not that low they are heart breakers most tune only trucks wont even break the 300hp mark on some mustangs regardless of what you are told. Not saying all but the majority any way.

 

It was done on a dynojet.

 

Who tuned it? what size tires?

 

It was tuned by next level performance in altamonte springs,fl. The factory 20's with
275-55-20 31.9 overall diameter.

 

What are common stock dyno numbers on average?

 

I dont know about awd but my 2wd tune only 6.2 put out 347hp on a dynojet w/ 22's

 

My truck is also 2WD!!

 

tiffo60 what all is done to your truck?

 

HP Tuned, K&N Drop in filter and replaced stock muffler with and 3 1/2in big body magnaflow