Jun B.L 4-2-1 headers are precision bent on CNC mandrel benders using data acquired from a non-contact digitizing scanner. Flanges are also CNC machined, Jun B.L machine-grind the flange mating surface to ensure a leak-free seal and use a robotic welder to attach the flange to the header pipes. State-of-the-art manufacturing process ensures superior quality and a perfect fit with every header system made.
- Available in 100% race-type SUS-304 semi-brushed stainless steel
- CNC mandrel bends with robotically-welded fittings
- Perfect fit equal length primary piping ensures optimum tuning
- Unique merge collector design ensures smooth exhaust gas flow
- Comprehensive installation instructions
- All necessary hardware needed for install included