SKU: 10309 | UPC: 690092130633
Vibrant 4-1 SS Merge Collector (2in Inlet Slipover ID 3-1/2in Merge Outlet OD)
Vibrant Performance 4-1 Merge Collectors feature a single slip design ideal for naturally aspirated applications, constructed from precise cut mandrel-bent 304 stainless steel tubing with high-quality TIG welded construction. The expanded inlet on this Vibrant 10309 model is designed to slip over 2″ OD piping for a secure, leak-free fit, while the 3-1/2″ merge outlet OD provides smooth exhaust flow transition. Sold individually, this collector merges four 2″ inlets into a single 3-1/2″ outlet, optimizing exhaust scavenging and velocity for improved horsepower and torque in custom header builds. Perfect for high-performance naturally aspirated or mild boosted setups where precise merge geometry and stainless durability are critical. TIG welds ensure strength and clean appearance under the hood or chassis.
Key Features & Benefits
- 304 Stainless Steel Tubing – Corrosion-resistant and durable for long-term performance
- Mandrel-Bent & TIG Welded – Smooth flow with precise construction for maximum scavenging
- 2″ Inlet Slipover ID – Fits directly over 2″ OD piping for easy, secure assembly
- 3-1/2″ Merge Outlet OD – Optimized transition for improved exhaust velocity and power
- Vibrant Quality – Precision engineering trusted in motorsports and custom builds
| Specification | Detail |
|---|---|
| Part Number | 10309 |
| Brand | Vibrant Performance |
| Type | 4-1 Merge Collector |
| Material | 304 Stainless Steel |
| Inlet Size | 2″ OD slipover (4 inlets) |
| Outlet Size | 3-1/2″ OD merge |
| Design | Single slip, mandrel-bent, TIG welded |
| Quantity | Sold individually |
Whats Included
- One 4-1 merge collector (2″ inlet slipover to 3-1/2″ outlet)
Product Notes
- Optimized for naturally aspirated applications; excellent scavenging and flow
- Slipover inlet fits over 2″ OD piping ideal for custom header collectors
- TIG welds provide strength and clean appearance for exposed installations
- 3-1/2″ merge outlet transitions smoothly to larger downpipe or exhaust
- Vibrant Performance trusted in racing and custom exhaust fabrication
Installation Notes
- Estimated time: Varies (custom welding/fabrication required)
- Slip inlet over 2″ OD piping and weld or clamp securely
- Align merge outlet with downpipe/exhaust tubing
- TIG weld for permanent, leak-free connection
- Professional fabrication/welding recommended for best results
This Part Fits
| Year Range | Make | Model | Engine | Notes |
|---|---|---|---|---|
| Universal | Universal | Universal | Universal | Custom exhaust/header builds; 2″ inlet slipover to 3-1/2″ outlet merge |
Why Choose Vibrant 4-1 Merge Collectors?
- Precision mandrel-bent 304 stainless for smooth, high-flow performance
- Slipover design simplifies custom header fabrication
- TIG welded construction ensures strength and clean welds
- Vibrant Performance leading brand in exhaust components and fittings
Frequently Asked Questions
- Q: Is this collector for naturally aspirated or turbo?
A: Ideal for naturally aspirated; suitable for mild boost with proper welding. - Q: How do I attach it?
A: Slip over 2″ OD piping and weld or clamp; outlet connects to 3-1/2″ downpipe. - Q: Is it sold as a set or single?
A: Sold individually purchase quantity needed for your header (typically 1 per bank).
Shipping and Handling
- Method: UPS / FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 3-5 lbs (single collector)
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