National Motor Headers EF7
Product specifications and design:
• Special design for Dena Plus, Samand EF7 vehicles• Increase vehicle efficiency up to 8 horsepower
• Suitable for high engine speeds
• Optimal design for professional users
Technical information:
| Collector type | Optimal angle integrator |
| Header type | One piece, medium length |
| Initial pipe diameter | 41.3 mm |
| Secondary pipe diameter | 44.5 mm |
| Pipe material | Taiwan 304 stainless steel |
| Flange thickness | 10 mm |
| Cutting type | CNC laser and milling |
| Welding type | GTAW Argon Welding |
| Flange shape | Oval |
This type of header is also a 1-2-4 header from Engine Arts. Its special design is perfectly suited to the flow rate of the exhaust air from the cylinder and is also useful at high engine speeds.