Description
A properly tuned header is non-negotiable for IMCA Modified racing—it’s the foundation of your power delivery on the track. Schoenfeld’s 1186SP spreads the primary tubes to optimize scavenging and exhaust velocity, translating directly to better throttle response and mid-range torque when it matters most. This kit delivers proven performance gains without requiring custom fabrication, so you can focus on setup and driver development.
- 1-3/4″ primary tubes
- 3-1/2″ collector outlet
- Spread port configuration
- Small Block Chevy fitment
- Steel construction
- Black paint finish
- Bolt-on installation
- IMCA Modified compliant
- Complete kit included
- Market-leading design
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