Down Pipes for 1860/61 for 8.1L w/Allison Trans

JBA 409 series stainless steel mid-pipes are the perfect compliment to your JBA Headers or JBA Exhaust system. These systems open up the flow on exhaust systems for a dramatic increase in performance and improved sound. They are available for many popular applications as a stand alone upgrade or an addition to existing JBA products.
Each system is application specific and optimized for your vehicle to get a perfect fit every time. They
feature smooth flowing mandrel-bent tubing, heavy duty flanges, factory style hangers and provisions for
factory emissions equipment for a simple installation. Available in H or X pipe configuration for most applications.

1. O2 sensor provisions * Standard on EFI headers for proper connection
2. Factory style hangers * Easy installation
3. Large diameter mandrel-bent tubing * Increased hp/tq and improved throttle response
4. Heavy duty flanges* Durable connection with exhaust system