2019 GMC Sierra Denali 6.2L - Borla ProXS Muffler & Flapper Valve Delete

New 2019 - 2022+ GMC Sierra and Chevrolet Silverado 6.2L trucks are nearly silent. I'm going to fix that with a Borla ProXS 40359 muffler. Furthermore these new trucks have ridiculous flapper valves (adaptive valves) which seem to plug up much of the exhaust. Where's the fun in having a 6.2L V8 when you can't hear the rumble? Not to mention the lost power potential and huge weight of the stock system. If you don't weld yourself, any reputable muffler shop should be able to install this muffler cheap!

Some of the products used in this video and recommended products include:

https://amzn.to/3uG4ZIR - Borla ProXS 40359 Muffler
https://amzn.to/2QciUaH - AHP AlphaTIG 203XI Welder
https://amzn.to/3dR8up3 - 3" T-304 Stainless Pipe
https://amzn.to/3d8Ms21 - Vibrant 3" Stainless Steel Clamps
https://amzn.to/3t8HdFh - Harris Type B Solar Flux
https://amzn.to/3g1lZFC - Flexible Bristle Acid/Flux Brushes
https://amzn.to/2QeD0kC - Forney ER309L Stainless Filler
https://amzn.to/3uMN4R3 - Blue Demon ER308L Stainless Filler

Video Production Gear:

Nikon Z6 Mirrorless & NIKKOR Z 24-70mm f/4 - https://amzn.to/3syYuYn
Atomos Ninja V Recorder - https://amzn.to/3bECMfi
Samsung SSD 860 EVO 1TB - https://amzn.to/3nGdDmZ
SMALLRIG Camera Cage Z6 - https://amzn.to/3bClBLv
SMALLRIG Side Wooden Handle Grip - https://amzn.to/3su299x
SMALLRIG Top Handle Grip - https://amzn.to/2Lz3U4L
SMALLRIG Articulating Magic Arm - https://amzn.to/3ifjXka
SMALLRIG HDMI Cable Clamp - https://amzn.to/38I6RZu
Thin Mini HDMI Cable - https://amzn.to/3oMKx6y

Audio Production Gear:

Tascam DR-680MKII 8-Track Digital Field Recorder - https://amzn.to/3nIkJY8
Audio-Technica 10 ATW-1101/L Wireless Lavalier - https://amzn.to/2XDW8Jp

These are Amazon affiliate links and I receive a small commission if you buy anything after clicking through. This supports the channel at no added cost to you!

0:00 Introduction
0:21 Removing Stock Exhaust
1:47 Welding Step Down Pipe
4:36 Test Fitting Muffler
5:30 Welding Extension Pipe
7:00 Exhaust Comparison
8:25 Wrap Up
9:12 Outro
9:32 HPDE Day Porsche GT3

#sierra #silverado #borla