Intake Thermostat 90mm throttle body and a tune. Truck will be awhole new animal. With the thermostat you can add more timing and that will make the truck a monster. Stock you cant add more than about a degree or you get knock.

 

anyone run a 3.5" cutout on the trucks yet? I am going to install an electric cutout i think

 

I have 1-3/4 kooks long tube headers with uncatted kooks ypipe, 3.5in exhaust w/o resonator, but have a spintech pro-shootout 4554 muffler in it, Sounds redicuosly amazing especially when you get over 2500rpm and especially pulling a trailer.

 

I know you'll probably get **** for reviving a 9 yr old thread but hey good info is still info right? And welcome aboard sir! Hope you enjoy this place, I have.

 

I will thank you, and yes it is.

 

Damn it's been a long time... I ordered a 2010 max trailer 6.2 extended cab SLT back in 2009 and took delivery in 2010. Left the truck on the lot because I thought it was and it truly was pretty gutless. Here we are 10 years later and I own a 2013 6.2 max trailer extended cab LT Silverado for my company truck because I wanted one lol. Thing only has 50000 miles on it but the original 6.2 is noisy in it and I have another L9H sitting on the floor of my shop. Cam, clean up the heads, injectors and long tubes along with fixing whatever it made for noise lol. And if that doesn't do well with the 3.73s I have 4.56s I can toss in it too. I'm going to leave the stock muffler if I can... I get sick of loud lol.