Looking to do a Trailblazer intake manifold swap? Then look no further! Almost every detail or concern will be covered in this video. Be sure to stay till the end, where we even cover the budget of the swap. I hope you enjoy the video, and that it helps you. Be sure to subscribe, and good luck in the garage! This mod applies to gen III LS motors or the 03-06 Silverado/Sierra's.

TBSS & NNBS manifolds are identical. Although pay attention to the intake ports. Gen III intakes will be Cathedral Port, while some newer NNBS gen IV intakes are rectangle port, and will not bolt up the same.

The truck is currently on a 2/4 Mcgaughys drop. Wheel setup is a 22x9 Snowflakes (made by OE performance, called 176M) with 285/45R22 Michelins. Headlights are by YITAmotors. If your interested in a SS bumper swap, here is the link to that video:    • Silverado SS Bumper Full Install, Ver...  

Parts I used:

Trailblazer Intake Manifold
https://www.rockauto.com/en/catalog/c...

Trailblazer Fuel Rails (No Shredder Valve)
https://www.rockauto.com/en/catalog/c...

Trailblazer Injectors
https://www.rockauto.com/en/catalog/c...

Injector Adapters
Glennsauto Performance
https://www.glennsautoperformance.com...

GM LS3 Throttle Body
https://paceperformance.com/i-5133050...

X-Link Harness, for 90mm TB conversion
http://torquerush.com/x-link.html

Purge Valve Solenoid
https://www.rockauto.com/en/catalog/c...

4 Bolt to 3 Bolt TB Adapter Plate
(If your keeping your 78mm DBW Tb)
https://www.speedwaymotors.com/ICT-Bi...

GM Throttle Body Gasket
https://www.rockauto.com/en/catalog/c...

Intake Manifold Gasket (Cathedral Port)
https://www.rockauto.com/en/catalog/c...

S&B Cold Air Intake
https://www.sbfilters.com/cold-air-in...

MAP Sensor Retainer Clip
GM# 12615934
https://www.tascaparts.com/oem-parts/...

C5 Corvette Fuel Pressure Regulator
(Only if you have a return style fuel system)
https://www.rockauto.com/en/catalog/c...

Aeromotive Universal Bypass Regulator
For High performance applications with AN fittings
(Optional Substitute for C5 fuel pressure regulator)
https://www.summitracing.com/parts/ae...

VPE Hose Coupler
4in Inlet - 4.5in Outlet
https://www.summitracing.com/parts/VP...

Drive By Wire TBSS/NNBS/L92 Intake Throttle Cable Bracket.
https://www.glennsautoperformance.com...