The 4 State Trucks Blog
Factory Peterbilt 379 Exhaust Mufflers vs Straight Pipes
When it comes to Peterbilt 379 factory-style exhaust muffler setups versus performance straight pipe exhaust (no muffler), the choice comes down to style preference.
Here's what you'll learn:
The pros and cons of aftermarket Peterbilt 379 stacks with a straight pipe versus factory-style exhaust stacks with a muffler.
Keep in mind, if you want stay 100% DOT-compliant in 48/50 states, stick with the factory exhaust muffler setup for your Peterbilt 379. No modifications, no risk.
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5th Jun 2026
9 Costly Exhaust Installation Mistakes Truck Owners Should Avoid
Replacing exhaust stacks on a Peterbilt 379 is a bit easier than some other truck models, the installation process can still be time-consuming and tedious.
If you're an owner-operator installing new exhaust parts in your garage. Get ready.
Because a single faulty piece of hardware could be the difference between an over-the-weekend DIY-installation that takes a few hours or several weeks!
Looking to avoid all of that? This guide is here to help.
Here are the 9 most common
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3rd Jun 2026
How to Measure a Kenworth T880 Visor Before You Buy
Here's a quick reference guide on how to measure a Kenworth T880 visor.
To avoid ordering the wrong semi truck visor, you'll need to first know the truck's cab style, windshield shape, mounting bracket location, visor style, light options, and whether the visor replaces factory brackets or mounts differently.
Measuring T880 Drop Visor Size Guide by Cab Configuration
The Kenworth T880 has been in production since around 2014. Over the last 12 years, it has seen a few iterations, including the T8
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1st Jun 2026
T880 Exterior Upgrades for Highway Trucks
The Kenworth T880 (2013 - present) is a popular vocational truck with a set-back axle that is designed to handle heavy payloads and operate across rugged work sites whether as a dump truck or logging truck.
However, the T880 model can be transformed into a custom show-stopping highway hauler with nose-to-trail exterior upgrades that balance polished chrome with well-placed LED lighting upgrades.
Most T880 owners look for function over style, focusing on ergonomic tool boxes, non-slip step
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29th May 2026
T880 Visor Ultimate Buyer's Guide
There are countless Kenworth T880 visor options to choose from depending on the theme and style you’re going for.
Here's a quick buyer's guide for Kenworth T880 aftermarket visors.
Before you buy, consider factors like the cab style, visor drop depth, mounting configuration (standard or blind mount), windshield shape (flat or curved), and lighting preferences, if any.
How to Choose a Kenworth T880 Visor
Find the right fitment
Choose the visor shape/design/material
Choose the drop depth or
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27th May 2026