SKU: 12303194428

PacBrake PRXB In-Line Exhaust Brake Kit 94-98 Dodge 5.9L Cummins 12 Valve

Sale price$818.62 Regular price$909.58
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Description

PacBrake PRXB In-Line Exhaust Brake Kit 94-98 Dodge 5.9L Cummins 12 ValveDiesel engines, unlike gasoline engines, don't slow down simply by taking your foot off the accelerator; they rely on service and supplemental brakes. An exhaust brake is a form of a supplemental brake, and they work much differently than their conventional counterparts. Introducing the Pacbrake PRXB Pacbrake's flagship product, the PRXB (pressure regulated exhaust brake), is the unquestioned leader in the supplemental brake industry. The patented

Diesel engines, unlike gasoline engines, don't slow down simply by taking your foot off the accelerator; they rely on service and supplemental brakes. An exhaust brake is a form of a supplemental brake, and they work much differently than their conventional counterparts.

Introducing the Pacbrake PRXB - Pacbrake's flagship product, the PRXB (pressure regulated exhaust brake), is the unquestioned leader in the supplemental brake industry. The patented PRXB design delivers the strongest braking horsepower, greatest speed reductions and shortest stopping distances possible without the use of service brakes. It maintains optimum retarding performance by maximizing the exhaust backpressure throughout the entire RPM range. Unlike a typical exhaust brake, which requires high RPMs to work properly, the PRXB delivers constant exhaust pressure (braking) as early as 1200 RPM through to the maximum allowable RPM.

Controlled by a master ON/OFF switch, Pacbrake's exhaust brakes provide whisper quiet supplemental braking that allows service brakes to be used much less, ultimately saving you money. They have the ability to be left on all the time, making it ideal for in-city driving or for steep, downhill grades. This product pays for itself as less wear on the brake pads means fewer brake jobs.

In order to have consistent and effective braking over the entire RPM range, it is important (and necessary) to maintain constant backpressure. To achieve this, Pacbrake's patented design has incorporated an additional waste gate on the butterfly valve to regulate the amount of exhaust flow that is being passed through. The flow is controlled by a spring-loaded arm, whose pressure rating and location are key factors in the functionality of the PRXB. Located outside of the housing and away from the heat, the spring is able to maintain its strength and durability for years of proper and precise braking performance.

PRXB Exhaust Brakes: PRXB To The Test

THE TEST

Two trucks, one equipped with a PRXB exhaust brake and the other with our competitors exhaust brake, are traveling down a 5% grade. Both vehicles start descending at the same time while traveling at a speed of 45 MPH. With a sharp corner ahead, both vehicles activate their exhaust brake...

RESULTS AFTER 60 SECONDS

The truck equipped with the PRXB slowed to a safe cornering speed (18 MPH) in just under 1/2 mile. In that same amount of time, the truck equipped with our competitors exhaust brake traveled 450 ft MORE and was still moving at a dangerous 30 MPH. Did this truck slow down in time?

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SKU: 12303194428

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Kindle Customer
Alexandria, US
★★★★★ 4
Increases wellness
Gentle support of boold sugar. It's a good combination of herbs that affect different body functions while boosting wellness naturally. The product is probably safe unless someone allergic to one of the ingredients. It has good health affects after 6 to 10 weeks
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Reviewed in the United States on April 12, 2026
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Rose Castro
Grantham, US
★★★★★ 5
It is a vegan product
Great product. Value in a bottle. Does what it says it does. No side effects. Will continue using
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Reviewed in the United States on June 3, 2026
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Chrissie
Battle Creek, US
★★★★★ 5
Works for Appetite!
I honestly expected this to be like any other product that works for everyone else, except me. Well, it actually curbs my appetite. I don't notice a flavor. I do take Raspberry Keytones on lunch as well. The problem is, I actually need to remind myself to eat. I haven't lost any weight from it, but I've only been on it a week. I'm dealing with a back injury and the meds they put me on made me gain so much weight, especially since i can't go to the gym currently. Since I started taking this, I stopped gaining weight , so that's huge for me. It's definitely worth the money, if you're having issues like me!
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Reviewed in the United States on April 29, 2026
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Pauline Allen
Charlottesville, US
★★★★★ 5
New vitamin
Capsules are not to big and easy to swallow.
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Reviewed in the United States on April 2, 2026
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Lequita Nolan
Houston, US
★★★★★ 3
Not impressed
Does not work
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Reviewed in the United States on April 14, 2026

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