The Sikky RX8 Quick Change Subframe Kit is a crucial addition for building a top-tier performance race car. This setup allows users to change gear ratios in under 5 minutes simply by removing the rear cover of the rear end. This is a major advantage when fine-tuning your setup at the track to ensure your gearing is in the sweet spot, preventing you from being forced to shift at inappropriate times. It is also designed to handle massive amounts of power. Customers are using this setup in cars well over 1,200 horsepower.
We designed, developed, and tested this subframe kit to withstand the most rigorous conditions. We use advanced technology such as FARO 3D scanning arms and Solidworks CAD software to design and build every subframe assembly to precise tolerances. The perfect rear placement ensures that the differential is always centered for optimal CV joint angles while remaining Formula Drift legal. It is designed to handle all the abuse that high-horsepower cars inflict. The subframe ships fully assembled with the necessary brackets welded and the entire assembly powder-coated black. Options are available to add a Sikky Winters IRS rear, Sikky solid subframe bushings, driveshafts, and/or heavy-duty axles. If you want a competitive edge, the Sikky Winters IRS Subframe Kit is the right choice.
Kit Information:
- Formula Drift legal
- No subframe core required
- CNC machined mounting brackets
- Fully assembled using a FARO arm to ensure absolutely perfect differential alignment
- Black powder coat finish
- All necessary hardware included
- Fuel cell or fuel tank relocation required for most applications
We also offer driveshafts and heavy-duty axles designed specifically for these setups:Click here
Before Ordering
〇Regarding Import Consumption Tax
At Shaftoya Shopping Site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
As our product database is based on North American vehicles (USDM), please confirm whether parts can be installed on Japanese domestic vehicles (JDM) before ordering. (Please feel free to contact us if you are unsure whether a listed product is compatible with your vehicle; our support team will be happy to look into it for you.)
If you order without verifying compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and model using the tabs on our top page, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow yourself plenty of time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air; they are never shipped by sea freight.
○Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese vehicle inspection system" (Shaken), and we cannot provide strength calculation documents for Japanese inspection purposes. Therefore, all parts are sold for the purpose of "circuit, private property, and off-road use," and installation and use are at your own risk.
○Regarding Warranty
Please check the contents of your order as soon as it arrives. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or the product itself. Please understand that we will only provide returns, refunds, or exchanges for products with shipping damage, defective items, or items different from what you ordered if you contact us within 7 days of receipt. Furthermore, for products sold through us, warranty support will be handled "exclusively through us." Please note that we do not handle coordination through other companies or distributors located within Japan.