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SKU: BXFL-00110
BLOX Racing JDM Honda Header Collector Flange - 2.5inch (Stainless Steel) 1988-2001 Civic Integra
The BLOX Racing JDM Honda Header Collector Flange features a 2.5-inch stainless steel design machined for custom exhaust headers on 1988-2001 Honda Civic and Acura Integra models with B-series D-series H-series and F-series engines. This flange merges four primaries into one collector for smoother exhaust flow reduced backpressure and noticeable gains in horsepower and throttle response. JDM enthusiasts rely on it for authentic high-performance builds.
Key Features
- Stainless Steel Build: High-grade 304 stainless resists heat corrosion and fatigue for reliable long-term use in demanding conditions.
- 2.5-Inch Collector Outlet: Matches popular 2.5-inch piping to maintain velocity and support flows up to 400hp without restriction.
- Honda Primary Bolt Pattern: 4-bolt pattern sized for standard B/D/H/F-series tubes ensures direct fit during header fabrication.
- CNC Precision Machining: 0.38-inch thick flange with exact tolerances prevents leaks and aligns perfectly for pro-level results.
- Optimized Merge Design: Smooth transition from primaries to collector minimizes turbulence for peak scavenging and efficiency.
Product Notes
- Intended for custom header fabrication with compatible primary tubes.
- Inspect tube diameters to confirm match with 1.5-inch or 1.625-inch Honda primaries.
- Packaged to prevent shipping damage with protective foam inserts.
Installation Notes
- Professional installation recommended.
- Weld outlet to 2.5-inch exhaust piping using TIG method for best results.
- Bolts to header primaries with M8 hardware not included.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988-1991 | Honda | Civic | EF SiR B16A |
| 1992-1995 | Honda | Civic | EG SiR B16A |
| 1992-1995 | Acura | Integra | GSR B18C1 |
| 1996-2000 | Honda | Civic | EK Si B16A2 |
| 1994-2001 | Acura | Integra | Type R B18C5 |
| 1993-1997 | Honda | Del Sol | VTEC B16B |
| 1992-1996 | Honda | Prelude | Si H22A |
| 1994-1997 | Honda | Accord | EX F22B1 |
Why Choose BLOX Racing?
- Proven in JDM racing circuits for consistent power delivery.
- Manufactured with premium materials and strict quality controls.
- Engineered by Honda specialists for exact OEM-plus fitment.
Frequently Asked Questions
-
Q: Which Honda engines is this flange compatible with?
A: Designed for B-series B16 B18 D-series D16 H-series H22 and F-series F20 F22 F23 engines in JDM and USDM applications. -
Q: What is the material and thickness?
A: Constructed from durable 304 stainless steel with 0.38-inch flange thickness to handle extreme exhaust temperatures. -
Q: Does installation require special tools or welding?
A: Bolts to primaries and requires TIG welding to collector pipe professional fab shop advised for optimal sealing.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: 8 x 6 x 4 inch box with foam protection
- Weight: 1.4 lbs
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