DenaliX14

Guys be skeptical... Look for DATA** Speak with Tuners and Folks that have been around these items for decent length of time. Don't ever just accept anecdotal comments or **feelings**. They're not factual and don't provide any evidence to support you spending your hard earned money! As far as my experience with JET; I've purchased the TB and then the MAF sensor. I did not notice a single difference using one, the other or both at the same time (purchased independently of one another). When Speaking with tuners, (DiabLEW, and local tuners) they all recommended going back to OEM as JET causes issues while tuning. Especially the MAF sensor. Just my $.02 save your money. If you're out for Performance just buy a Supercharger kit, Whipple, PROcharger or Eddlebrock. They're all relatively the same price and go on sale during Black Friday (Big time). It will provide a totally different driving experience and jack your HP up significantly without having to upgrade any additional internals/externals. If you're out for a cool sounding vehicle, just grab yourself an exhaust.

I’m glad it all wrapped up! Looks super clean sir. I bet it slaps a huge smile on your face at WOT!!! We’ll have to grab lunch one day when mine gets done!

This is practically the same way for the L83, LT1, L86 etc.

is that what you purchased personally? I'm looking at significant jump in HP with my 14 Denali 6.2L. I have some real concerns for my OEM Driveshaft.

Also, http://www.driveshaftspecialist.com/Truckhtml/Chevy-GMC.html They can help you.

If you wanted to do a budget swap you can do this as well. Throttle Body adapter. ($62.95) https://www.lingenfelter.com/product/L270036914.html#.XEyvzS2ZNQI Intake Manifold. ($104.79) https://www.rockauto.com/en/catalog/gmc,2014,sierra+1500,6.2l+v8,3294373,engine,intake+manifold,5536 Throttle Body Zr1 95mm https://www.rockauto.com/en/parts/acdelco,12669871,throttle+body,6472 or https://www.ebay.com/p/Genuine-GM-12669871-Throttle-Body-95mm-TB-Lt5-Corvette/10023535924?iid=202486850141&chn=ps You're looking at like $500ish shipped vs, maybe $2,000 shipped.

Hey guys, So you will need to swap the Intake Manifold as well. The L83 5.3L has a 80mm TB. https://www.onallcylinders.com/2018/02/21/l83-l8b-5-3l-ecotec3-engine-specs-performance-bore-stroke-cylinder-heads-cam-specs-more/ The L86 has a 87mm TB https://www.onallcylinders.com/2018/02/28/l86-6-2l-ecotec3-engine-specs-performance-bore-stroke-cylinder-heads-cam-specs-more/ If you want some stupid power get a Ported L86 intake manifold and then a Ported 95mm TB from Lenginfelter. It is a easy to do at home swap. https://gwatneyperformance.com/product/gpi-di-5-3-engine-air-induction-package-2014-up-gm-truck/#configuration ^ gives you numbers as well. 17rwhp for intake manifold etc. TB https://www.lingenfelter.com/product/L270056914.html#.XEyvUy2ZNQI