# Beyea Custom Headers IDM-604-S1B Beyea IMCA and UMP Dirt Modified Headers | Summit Racing

**Manufacturer:** Beyea Custom Headers  
**MPN:** `IDM-604-S1B`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Beyea Custom Headers |
| Manufacturer name | Beyea Custom Headers |
| Manufacturer | Beyea Custom Headers |
| Extra Product Name | Beyea Custom Headers IDM-604-S1B Beyea IMCA and UMP Dirt Modified Headers \| Summit Racing |
| moq | 1 |
| MPN | IDM-604-S1B |
| multiple | 1 |
| qtyInStock | Tuesday 5/30/2023 |
| SKU | BEY-4090 |
| tierMinQty1 | 1 |
| tierPrice1 | 462.9900 |
| Brand | Beyea Custom Headers |
| Manufacturer's Part Number | IDM-604-S1B |
| Part Type | Headers |
| Product Line | Beyea IMCA and UMP Dirt Modified Headers |
| Summit Racing Part Number | BEY-4090 |
| Header Style | Circle Track 4-1 one-piece |
| Header Material | Steel |
| Primary Tube Outside Diameter (in ) | 1 5/8 - 1 3/4 in. |
| Header Color | Temporary non-high temperature paint |
| Weld-Up | No |
| Collector Diameter (in ) | 3.00 |
| Collector Reducers Included | No |
| Tuned | Yes |
| Flange Thickness (in ) | 0.31 in. |
| Bolts/Studs Included | No |
| Gaskets Included | No |
| Crossover Pipe Included | No |
| Catalytic Converter(s) Included | No |
| Motor Mounts Included | No |
| Transmission Mount Included | No |
| Quantity | Sold as a pair. |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Summit Racing | BEY-4090 | 462.99 | 1 | None | 1 |
| Jegs | 076-IDM-604-S1B | 462.99 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/4000000/4011000/part_--IDM604S1B---BeyeaCustomHeaders--ca68e4e69b.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp