Download the Sport Truck installation article on the Chevy 5.3L Silverado Click here

The standard Vortec V8 from Chevrolet has a solid reputation for dependability, "Like a rock." JBA's heavy-duty exhaust products compliment that reputation with bullet-proof engineering and construction. But with the added horsepower and torque that JBA delivers you're going to change that saying to, "Like a Rocket!" If you spend time hauling and towing or just cruising, you are going to appreciate the extra power. It hits hard low in the RPM range and keeps pulling all the way to redline. Dyno testing shows gains of 28+ hp and 29+ lb-ft at the tires. Even better, you can install all of these components yourself in a few hours. JBA's headers, exhaust systems and ignition wires include everything you need to do a professional install in your garage.

At the heart of your Silverado is Chevy's dependable and powerful Vortec V8. These small blocks are capable of getting most jobs done but when the load gets heavy the factory cast manifolds get in the way of performance and efficiency. JBA's Cat4ward® Headers designed for the Vortec V8 open up the breathing on your truck with high-flowing mandrel-bent 1-5/8" primary tube that merge in to JBA's patented Firecone® merged collector. By reducing back pressure and turbulence in the exhaust, the JBA headers free up torque, horsepower and efficiency lost in the factory set-up. Get as much as 14+ hp and 21 lb-ft of torque at the tires. These headers also feature ultra thick 3/8" laser-cut flanges and are available in a variety of finishes to fit your specific needs. Each kit includes high quality hardware and thorough instructions for a professional bolt-on installation.

8mm JBA PowerCables™ p/n 0850

installed on a Gen III V8.

When upgrading the performance of your Chevy truck, you will want to upgrade your ignition wires to a set of JBA PowerCables™. Each set is custom tailored to your specific application so you get a perfect fit every time. JBA's performance ignition wires feature ultra-low resistance wire-wound mag conductors that allow more spark energy to reach the spark plug without electronic interference. JBA Powercables™ come with 100% silicone jackets for great resistance to high heat as well as abrasion and tears. The high heat boots give plenty of clearance for routing around the headers. Sport Truck magazine tested these wires and found they were less than 1/2 the resistance of the factory wires. The editors at Car Craft made an extra 5 hp on a project engine with a set of 9mm JBA PowerCables™. Installing a set of these wires is easy to do on the Gen III Vortec engines and they look great under the hood.

If you own a Silverado or Sierra, chances are you use it for towing or hauling. You probably know what it's like when the hill is steep and your V8 is running wide open to keep up with traffic. JBA's Evol exhaust systems give the small block engine under your hood a less restrictive path to expel spent gasses freeing up extra ponies. This is often times the easiest way to increase horsepower and torque on your truck. Each system is engineered and tuned to deliver maximum performance gains throughout the RPM range without annoying interior resonance. These JBA kits feature 3" mandrel-bent tubing, a fully welded high flow JBA muffler, factory style exhaust hangers, and a great looking 3-1/2" polished and chrome plated stainless steel rolled tip. Power. Sound. Quality. JBA has it all.

JBA Equipped 2003 Chevy Silverado

4x4 by CST Suspensions

Download the Sport Truck installation

article on the Chevy 5.3L Silverado

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2004 GMC 5.3L (Auto) with JBA Headers p/n 1850S-2JS and JBA Exhaust System p/n 40-3040

idle and rev (MP3)
rev and accelerating (MP3)
passing (MP3)