Many drivers may not realize that there can be a significant amount of slack in a vehicle's factory subframe. OEM engineers often have to balance performance with factors such as comfort, cost, and ease of assembly. For example, the 10th Gen Civic subframe mounting holes are 2mm larger than the bolts, allowing for shift, vibration, and clunking during hard cornering or braking. This can result in a loss of steering sharpness and responsiveness. This is why we at PRL, where we prioritize performance, developed our SRS Collar Kit to eliminate this slack.
The PRL Motorsport SRS Collar Kit effectively addresses these issues by precisely filling the 2mm gap around the subframe mounting bolts, ensuring a snug fit that prevents excess movement. This adjustment significantly reduces vibration, improves handling, and increases chassis rigidity, making it perfect for track days, autocross, or simply improving daily driving. Constructed from durable 6061 aluminum and black anodized, these collars ensure lasting performance and reliability.
Quick Specs:
- Precision machined to fill the 2mm gap in subframe mounting bolts, reducing slop and unwanted movement
- Reduces vibration during hard cornering and braking
- Improves overall handling and increases chassis rigidity
- Perfect for setting up a vehicle for the track, autocross, or optimal daily driving
- Constructed from durable, long-lasting 6061 aluminum, black anodized
Vehicle Fitment:
2016-2021 Honda Civic
Installation Instructions:
10th Gen SRS Collar Kit Front & Rear - 2016-2021 Honda Civic
Before Ordering
〇 About Import Consumption Tax
At Shaftoya Shopping Site, we pay the import consumption tax incurred at the time of import on your behalf, so you will not be charged any additional fees beyond the total amount paid at checkout.
〇 Compatibility Confirmation
All product databases are based on North American vehicles (USDM). Please confirm whether or not the product can be installed on Japanese vehicles (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and vehicle model on the tabs of our home page, it does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping fees are paid at the time of checkout. For shipping fee estimates, the cost will be calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the amount automatically calculated. 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 order with enough time to spare. If you are in a hurry, please contact us in advance to check the lead time. All products are shipped via air freight. No items are shipped by sea.
○ Regarding Japanese Vehicle Inspection Compatibility
Generally, all products we handle are designed and manufactured outside of Japan. Please note that they do not comply with "Japanese Vehicle Inspection" standards, and we cannot provide strength calculation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for the purpose of "use on tracks, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or the product itself. We will only provide returns, refunds, or replacements for damaged products, defective items, or items different from what you ordered if you contact us within 7 days of receipt. Please note that for products sold through us, we will only handle warranty claims "exclusively through us." Please understand that we do not handle support through other companies or distributors located within Japan.