Modified Headers

If you're running IMCA Modified competition, exhaust scavenging directly impacts your power band and lap times. Schoenfeld's SBC Modified header delivers optimized primary tube sizing and collector design specifically engineered for small block Chevy...

Maximizing exhaust scavenging in IMCA Modified competition demands precision-engineered headers tuned to your specific engine and chassis combination. The Schoenfeld SBC Modified Header delivers the primary tube diameter and collector sizing that...

Schoenfeld's SBC Crate Modified Headers are engineered specifically for IMCA circle track competition, delivering optimized scavenging and exhaust flow that translates directly to power at the line. The long primary tube design maximizes low-to-mid-range...

If you're running IMCA Modified competition, header selection directly impacts exhaust scavenging, power delivery, and lap times. The Schoenfeld SBC Modified Header 602 is engineered specifically for Small Block Chevy crate engines, offering the long...

If you're running IMCA Modified competition, exhaust scavenging directly impacts your power output and lap times. Schoenfeld's long-primary headers are engineered to optimize exhaust gas velocity and cylinder evacuation on small block Chevy platforms,...

If you're running a Small Block Chevy in IMCA-UMP Modified competition, exhaust scavenging directly impacts your power band and lap times. The Beyea SBC Modified Header delivers optimized primary tube sizing and collector geometry specifically engineered...

If you're running IMCA Modified competition, your exhaust system directly impacts power delivery and thermal management under high-RPM stress. The Schoenfeld 1106V headers are purpose-built for circle track racing, engineered to optimize scavenging...