Modified Headers

Efficient exhaust scavenging is critical to peak performance in IMCA Modified competition, and the Schoenfeld 1106 headers deliver exactly that. Purpose-built for popular chassis like BMS, Speedway Motors, and Harris, these mid-length headers optimize...

If you're running a 604 crate engine in IMICA or UMP competition, exhaust scavenging directly impacts your power output and consistency across heat cycles. The Beyea SBC Modified Header is purpose-built for dirt modified racing, delivering optimized...

A quality header is fundamental to unlocking your small block Chevy's horsepower potential—it's one of the highest-ROI bolt-on modifications you can make. This Beyea SBC Modified header is purpose-built for IMCA-UMP Modified competition, delivering...

If you're running a Small Block Chevy in IMCA-UMP Modified competition, exhaust scavenging directly impacts your power output and consistency across the RPM band. The Beyea SBC Modified Header delivers optimized primary tube sizing and a efficient 3-inch...

Schoenfeld headers are engineered to maximize exhaust scavenging and minimize backpressure in small-block Chevy engines, translating directly to improved horsepower and throttle response. The long-tube design pulls exhaust gases away from the combustion...

If you're running a 602 crate engine in IMCA-UMP Northern Sport Modified competition, exhaust scavenging directly impacts your power curve and lap times. The Beyea SBC Modified Header delivers optimized collector design and properly sized primaries to...

Optimizing exhaust flow is critical for maximizing horsepower and torque in IMCA-UMP Modified competition, and the Beyea SBC Modified Header delivers the scavenging efficiency your engine needs to stay competitive. With precisely sized primary tubes and...

Extracting maximum horsepower from your small block Chevy requires exhaust headers engineered for your specific class and chassis setup. Schoenfeld's IMCA Modified header delivers optimized scavenging and flow characteristics that directly translate to...

If you're running IMCA Modified competition, exhaust scavenging directly impacts your power output and consistency across heat cycles. Schoenfeld headers are purpose-built for circle track racing with proven collector sizing and primary tube diameters...

IMCA Modified racing demands exhaust systems that can handle sustained high RPM operation without sacrificing flow efficiency. Schoenfeld's SBC headers deliver the collector diameter and primary tube sizing you need to extract maximum horsepower while...

If you're running a Small Block Chevy in IMCA Modified competition, header choice directly impacts your power output and track performance. The Schoenfeld SBC IMCA Headers 162 deliver optimized exhaust scavenging through precision-engineered primary and...

If you're running a Small Block Chevy in IMCA Modified competition, exhaust scavenging directly impacts your power curve and throttle response. Schoenfeld's SBC IMCA Headers are engineered with stepped primary tubes and a 3-inch collector to maximize...

If you're running IMCA Modified competition, header selection directly impacts your Small Block Chevy's power output and exhaust scavenging efficiency. The Schoenfeld SBC IMCA Headers deliver optimized primary tube sizing and collector design to maximize...

Schoenfeld's SBC IMCA headers are engineered to extract maximum exhaust scavenging efficiency in tight circle track competition. The 1-5/8" primary tubes provide optimized flow characteristics for Small Block Chevy platforms running IMCA Modified rules,...

Circle track racing demands exhaust systems engineered for peak power delivery and durability through sustained high-RPM competition. The Schoenfeld SBC Tri-Y Modified headers optimize scavenging and flow characteristics specific to IMCA Modified...

Extracting maximum power from your Small Block Chevy crate motor demands a header engineered for circle track competition, not street applications. Schoenfeld's modified long tube design optimizes exhaust scavenging and reduces backpressure, giving you...

Maximizing exhaust scavenging is critical in IMCA Modified competition, and Schoenfeld's long-tube headers are engineered to deliver measurable gains in low-end torque and mid-range power. The stepped primary design—transitioning from 1-5/8" to...

If you're running a 602 crate engine in IMCA Modified competition, exhaust scavenging directly impacts your power output and lap times. The Schoenfeld SBC Modified Long Tube Header optimizes exhaust flow with precisely-sized primaries and collector...

If you're running IMCA Modified circle track competition, exhaust scavenging directly impacts your power output and throttle response off the corners. Schoenfeld's purpose-built long tube headers are engineered to optimize exhaust flow for Small Block...

If you're running a 602 crate engine in IMCA Modified competition, header selection directly impacts your power band and lap times. The Schoenfeld SBC Modified Header delivers optimized exhaust scavenging through precisely sized primaries and collector,...