Hello everyone, I just joined today, Im on several other forums but figured this is probably the best place to get performance advice from. Here is a little background on my current setup.

I have a 08 sierra denali. Current mods are K&n intake, exhaust, and blackbear tune. I am looking for some additional performance mods to get more out of the truck. I have been considering headers, not sure if I should go with long tubes or shorties. A larger throttle body? What are your thoughts? What is going to be some of the best bang for the buck. Thanks

 

Throttle body would be a waste since you already have a 90mm. I would say to do a torque converter or nitrous kit. My brothers did a 13.3 on a 100 shot and tune a few months ago.

 

Long Tubes!

 

x2

Then finish out the exhaust and re-tune!

 

LT headers and a ~3200 converter would be nice.

heres what LT headers should do for you.
https://www.performancetrucks.net/fo...d.php?t=470712

 

the throttle body in your truck is the 87mm

 

What recommendations do you have for long tubes?

 

Kooks are the only way to roll. Pricey but you get what you pay for in function fit finish and ease of installation

 

the camaro got the 90mm

 

Will the 87mm or 90mm throttle body fit on my 08 silverado 5.3??