SKU: BXFL-00031
Universal Fit BLOX Racing Exhaust Flange - 2.5in (2-Bolt) BXFL-00031 for 1988-2000 Honda Civic EG EK DC2 Acura Integra
This BLOX Racing exhaust flange delivers secure leak-free connections for 2.5 inch OD tubing in custom exhaust systems. It suits performance Honda Civic EG EK DC2 and Acura Integra models plus universal 2.5in setups for unrestricted exhaust flow and lower backpressure. Precision engineering maintains seals under extreme heat and boost pressure in turbo or high-horsepower builds.
Key Features
- 304 Stainless Steel: Resists corrosion heat and exhaust gases for long-lasting durability in demanding conditions
- 2.5in Size: Matches 2.5 inch outer diameter tubing for direct weld-on fit and unrestricted flow
- 2-Bolt Pattern: 5/16-18 bolts with 2.75in center spacing provide strong clamping force without distortion
- 0.5in Thickness: Heavy-duty build handles turbo and high-horsepower applications without warping
- Mirror Polish Finish: Clean appearance under the car complements show-quality exhaust systems
Product Notes
- Weld flange to exhaust pipe using TIG for best results
- Inspect gasket and bolts regularly for optimal performance
- Packaged in protective foam to prevent shipping damage
Installation Notes
- Professional installation recommended.
- TIG weld to 2.5in OD mild steel or stainless exhaust pipe
- Uses standard 5/16-18 x 1in bolts and copper exhaust gasket
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988-1991 | Honda | Civic | All |
| 1992-1995 | Honda | Civic | All |
| 1996-2000 | Honda | Civic | All |
| 1994-2001 | Acura | Integra | All |
| 1999-2004 | Acura | RSX | All |
| Universal | All | 2.5in Exhaust | Custom Builds |
Why Choose BLOX Racing?
- Proven track record in import racing since 2004
- CNC machined parts for exact tolerances
- Engineered for JDM performance applications
Frequently Asked Questions
-
Q: Does this flange fit Honda Civic exhaust systems?
A: Yes it welds perfectly to 2.5in tubing on 1988-2000 Civic EG EK models and similar imports -
Q: What material is the flange made from?
A: High-grade 304 stainless steel with mirror polish resists rust and maintains shape under 1500F heat -
Q: What hardware is needed for installation?
A: Includes 2 x 5/16-18 bolts recommended plus exhaust gasket sold separately
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Sturdy box 5 x 5 x 2 inches
- Weight: 0.75 lbs
BLOX Racing
BLOX Racing has built a strong following in the import and sport compact community since 2003 by delivering parts that meet or exceed OEM quality standards at prices that make building accessible. Every BLOX product is designed with ISO 9001-certified manufacturing processes and subjected to rigorous testing before release, ensuring fitment and reliability that matches the performance they advertise. Popular Upgrades BLOX Racing intake manifolds and throttle bodies are popular for Honda, Acura, and other sport compact platforms, delivering improved airflow and throttle response over stock components. Suspension components including adjustable end links, sway bars, and pillow ball mounts allow precise handling tuning for street and autocross use. Engine hardware — cam gears, valve train components, and timing chain kits — rounds out the BLOX catalog for builders pushing beyond stock engine parameters. What platforms does BLOX Racing support? BLOX Racing focuses primarily on Honda, Ac...
View BLOX Racing Products
Fabrication
Fabrication parts and materials provide the raw components needed to build, repair, and modify custom exhaust systems, turbocharger plumbing, intercooler piping, fuel system lines, oil routing, and engine bay heat management on performance and competition vehicles. Stainless steel tubing, titanium tubing, aluminum charge piping, mandrel bends, pie cuts, flanges, merge collectors, V-band clamps, O2 sensor bungs, AN fittings, PTFE hose kits, braided fuel and oil lines, heat shields, and welding supplies are the backbone of any serious custom fabrication project. Professional fabricators, race team mechanics, and advanced DIY builders who want full control over exhaust routing, charge pipe layout, or fuel system plumbing choose raw fabrication materials rather than pre-bent kits because custom fabrication allows fitment solutions that no universal kit can accommodate. Brands including Vibrant Performance, Ticon Industries, Stainless Bros, Radium Engineering, Fragola, and DEI provide th...
View Fabrication Products
Flanges
Exhaust flanges are the bolted connection points where exhaust manifolds mate to downpipes, where sections of exhaust pipe join at catalytic converters and muffler inlets, and where aftermarket headers connect to factory or custom collector sections, making flange quality and correct material specification critical for maintaining leak-free exhaust connections under the extreme temperature cycling that performance exhaust systems experience. Flange warping and gasket failures at exhaust connection points are among the most common exhaust leak sources on both stock and modified vehicles, as the thermal expansion differences between the flange material and the connected pipe cause progressive face distortion over time that breaks the gasket seal. Performance exhaust builders use thick-cut mild steel, stainless steel, or titanium flanges in precise O.D. profiles matched to their pipe diameter to ensure the clamping surface remains flat through hundreds of heat cycles. This collection c...
View Flanges Products


