OS Giken Mazda RX8/RX7 FD3S/RX7 13BT (MT Only) Super Lock LSD
Tax excluded. Shipping calculated at checkout
The OS Giken Super Lock LSD uses our patented pressure ring design that allows for smooth, progressive locking. This design is a spline-through-side-gear design that allows for fitment of more friction plates (up to 2x as many as competitors versions).
- All components are chemically heat treated for maximum durability
- All components are constructed from a high-grade steel alloy
- Gears are raw-forged for maximum strength
- Clutch disks are precision-machined simultaneously on both sides to extremely tight tolerances resulting in minimal warpage.
- LSD case is machined from a single billet piece to ensure uniformity.
The OS LSD standard spec allows for low preload while still retaining a fully progressive 100% lock capability. Operation is quiet and the progressive locking allows for smooth predictable locking. When replacing an open diff, equipping an OS LSD will completely improve the driving experience while maintaining everyday drivability.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1988 | Mazda | RX-7 | 10th Anniversary |
| 1993-1995 | Mazda | RX-7 | Base |
| 1993 | Mazda | RX-7 | R1 |
| 1994-1995 | Mazda | RX-7 | R2 |
| 1993-1995 | Mazda | RX-7 | Touring |
| 1987-1991 | Mazda | RX-7 | Turbo |
| 2008 | Mazda | RX-8 | 40th Anniversary Edition |
| 2004-2007 | Mazda | RX-8 | Base |
| 2008-2011 | Mazda | RX-8 | Grand Touring |
| 2009-2011 | Mazda | RX-8 | R3 |
| 2005 | Mazda | RX-8 | Shinka |
| 2008-2011 | Mazda | RX-8 | Sport |
| 2008-2009 | Mazda | RX-8 | Touring |
FAQ
How Long Will It Take to Receive My Order?
Shipping times vary based on your location and our inventory levels.
- In-Stock Items: All in-stock items will be shipped within 2-3 business days and delivered using the shipping method you selected at checkout.
- Delivery Details: Once your order is shipped, you will receive a confirmation email with tracking and delivery details.
If you have any questions about your order, please don't hesitate to contact us.
My Order Is Taking Longer Than Expected. What Can I Do?
At T1 Motorsports, we strive to ensure every customer is satisfied with their experience.
- Before your order is confirmed, you will receive an email with the estimated arrival time (ETA) for your shipment.
- While we do our best to meet all delivery expectations, unexpected delays may occur. Rest assured, our team is always here to help and resolve any issues.
- If you have any concerns regarding your order, please contact us directly, and we’ll work to find the best solution for you.
What Is Your Return & Exchange Policy?
Order Cancellations & Processing Fees
- All processed orders that have not yet shipped will incur a 6% processing fee to cover payment processing and cancellation costs from manufacturers or warehouses.
- A processed order refers to any order that has been entered into our system, removed from inventory, and is in the packing or shipping stage.
- For special orders or custom-made items, the processing phase begins once the manufacturer has received our order.
- To prevent unwanted shipments, please notify us immediately if you wish to cancel a recently placed order.
Returns & Exchanges
Due to the nature of racing and performance vehicle parts, the following return conditions apply:
- No returns will be accepted on:
- Special order items
- Opened, installed, incomplete, or used products
- If a product is unused and unwanted, it may be returned within 30 days of delivery (excluding special order items).
Refund Options
Upon return of an eligible product, you have two refund options:
- Refund to Original Payment Method
- Subject to a 20% restocking fee on the total amount.
- Initial shipping costs are non-refundable (even for "free shipping" items, as actual shipping charges must be deducted).
- Store Credit Option
- Receive a full credit (minus shipping costs) for future purchases at T1 Motorsports.
- Some brands may have up to a 10% restocking fee - please contact us for confirmation.
Return Shipping
- If you cannot ship the product back yourself, we may provide a return shipping label.
- The shipping cost will be deducted from your total refund or store credit.
- All returns must be reported within 30 days of the delivery date.
For any questions or assistance, please contact T1 Motorsports customer support. Special order items
Opened, installed, incomplete, or used products
What Should I Do If My Ordered Product Doesn't Fit?
At T1 Motorsports, we take great care to ensure our fitment guide is as accurate as possible.
- If you experience any fitment issues with your product, please contact us via email or phone.
- Our team is ready to assist you and provide a solution to resolve the issue promptly.
Your satisfaction is our priority, and we’re here to help ensure the perfect fit for your vehicle!