8. This shot shows the JBA technicians removing the factory exhaust system from our truck. 9. Here you can see the differences between the OE exhaust system and the JBA setup. Aside from the increase in pipe diameter, the JBA system contains a freer flowing muffler and a less restrictive Y-pipe.9. Here you can see the differences between the OE exhaust system and the JBA setup. Aside 10. The only portion of the factory system we reused is the OE catalytic converters. Here, the JBA technician installs the driver-side cat to the new JBA header.10. The only portion of the factory system we reused is the OE catalytic converters. Here, 11. We're not sure why JBA uses a round muffler in the kit instead of an oval type shown in its marketing brochure. Our guess is that someone used the wrong muffler for the brochure's photo shoot. After the fact, we questioned JBA about this, and they assured us that the round-type muffler included with our kit was indeed the proper unit for our truck.11. We're not sure why JBA uses a round muffler in the kit instead of an oval type shown i 12. This shot shows the tailpipe section of the JBA exhaust system. Notice how it tucks nicely up and over the axle, while maintaining critical clearance between the spare tire and the hot pipe. The polished stainless steel tip adds a nice cosmetic effect, rounding out the whole package.12. This shot shows the tailpipe section of the JBA exhaust system. Notice how it tucks ni 13. We had JBA's technician add some tack welds in key areas to prevent unwanted movement. This step, while not necessary, will help prevent leaks in the long run.13. We had JBA's technician add some tack welds in key areas to prevent unwanted movement. As you can see from our testing, we gained 15 lb-ft of torque and 12 hp at peak performance. Not bad for a simple exhaust system. SOURCES JBA Performance Exhaust www.jbaheaders.com « | 1 | 2 | View Full Article Enjoyed this Post? Subscribe to our RSS Feed, or use your favorite social media to recommend us to friends and colleagues!