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SKU: BXFL-00307-SP
BLOX Racing SUS303 Stainless Steel Exhaust Manifold Stud Kit M8 x 1.25mm 45mm - Fits 1988-2011 Honda Civic Integra CRX RSX Prelude
BLOX Racing SUS303 Stainless Steel Exhaust Manifold Stud Kit features a single M8 x 1.25mm x 45mm stud designed as a direct replacement for factory hardware on Honda and Acura B-Series D-Series F-Series H-Series and K-Series engines. This stud secures exhaust manifolds on models like Civic Integra CRX RSX and Prelude providing reliable hold during high-performance operation. Corrosion-resistant material ensures long-term durability in exhaust environments.
Key Features
- SUS303 Stainless Steel: Resists rust and seizing for repeated disassembly common in engine builds and track use
- M8 x 1.25mm Fine Thread: Matches OEM specifications for precise fit and secure clamping force on exhaust flanges
- 45mm Length: Correct dimension for log-style and 4-1 manifolds on B D K series preventing bottoming out or loose fit
- Single Stud Packaging: Allows targeted replacement of broken or stripped factory studs without buying full sets
- Precision Machined: Rolled threads reduce galling and improve fatigue strength under heat cycles
Product Notes
- Direct OEM replacement maintains stock positioning and torque values
- Apply anti-seize to threads during install to avoid future corrosion lock-up
- Packed in protective sleeve for safe handling and storage
Installation Notes
- Professional installation recommended.
- Remove old stud with stud extractor if seized apply penetrating oil first
- Compatible with OEM nuts torque to 22-25 ft-lbs depending on engine spec
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988-1991 | Honda | Civic | Si CRX Si (B16A) |
| 1988-1991 | Honda | CR-X | Si (B16A) |
| 1990-1993 | Acura | Integra | LS GS RS (B18A1) |
| 1992-1995 | Honda | Civic | Si (EG6 B16A) |
| 1994-2001 | Acura | Integra | GS-R Type R (B18C) |
| 1996-2000 | Honda | Civic | Si EX (B16A2 D16Y8) |
| 1997-2001 | Honda | Prelude | SH Base (H22A) |
| 2002-2006 | Acura | RSX | Type-S Base (K20A2 K20A3) |
| 2006-2011 | Honda | Civic | Si (K20Z3) |
Why Choose BLOX Racing?
- Established JDM brand focused on Honda Acura performance hardware
- Engineered for racing and street applications with real-world testing
- CNC machined in-house for consistent quality and exact tolerances
Frequently Asked Questions
-
Q: Does this stud fit 1999-2000 Civic Si EM1 B16?
A: Yes direct fit for B16A2 exhaust manifold studs measuring 45mm overall length -
Q: What makes SUS303 stainless steel different?
A: SUS303 offers improved machinability corrosion resistance and strength over mild steel while allowing sulfur addition for smoother threading -
Q: Is a nut included and what is the warranty?
A: Stud only reuse OEM nut or buy separately BLOX Racing offers limited lifetime warranty against manufacturing defects
Shipping & Handling
- Method: USPS First Class or UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective poly bag 3 x 2 x 0.5 inches
- Weight: 0.05 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...
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