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Product Details
| Part Number: | SG-B323-CS1 |
| Brand: | SynchroTech |
Synchrotech SG-B323-CS1 – Pro Series Countershaft 1st Gear (3.23 OEM Ratio). A direct-fit replacement first gear designed for Hydro-style B-Series transmissions in 1994–2001 Acura Integra GSR and ITR models (case codes Y80, S80, S4C, Y21). This Pro Series component is built to OEM specifications and delivers smooth, reliable engagement while maintaining factory drive characteristics.
Features:
- Precise OEM Gauge Fitment: Compatible specifically with 1994–2001 Acura Integra GSR and ITR with Hydro-style B-Series manual transmissions (Y80, S80, S4C, Y21 transmission codes).
- Corrected Gear Ratio: Maintains the 3.23:1 first gear ratio, preserving stock gear timing and performance dynamics.
- Pro Series Construction: Crafted with high-grade, hardened materials for long-lasting durability, even under track-level stress.
- Direct Drop-In Replacement: Designed to fit seamlessly into existing gearbox assemblies—no modifications needed for installation.
- Note: Will not fit 98 spec JDM ITR
The Synchrotech SG-B323-CS1 Countershaft 1st Gear is a high-quality, OEM-level replacement tailored for the 1994–2001 Acura Integra GSR and ITR Hydro B-Series gearboxes. With a precise 3.23 ratio, robust construction, and plug-and-play design, it's an excellent choice for restoring or maintaining first-gear performance without overhauling the entire transmission.
WARNING: This product may contain chemicals known to the State of California to cause cancer or birth defects. www.P65Warnings.ca.gov.
Vehicle Fitment
| Year | Make | Model | Trim |
|---|---|---|---|
| 1994 | Acura | Integra | GS-R |
| 1995 | Acura | Integra | GS-R |
| 1996 | Acura | Integra | GS-R |
| 1997 | Acura | Integra | GS-R |
| 1997 | Acura | Integra | Type R |
| 1998 | Acura | Integra | GS-R |
| 1998 | Acura | Integra | Type R |
| 1999 | Acura | Integra | GS-R |
| 1999 | Honda | Civic | Si |
| 2000 | Acura | Integra | GS-R |
| 2000 | Acura | Integra | Type R |
| 2000 | Honda | Civic | Si |
| 2001 | Acura | Integra | GS-R |
| 2001 | Acura | Integra | Type R |
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