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The HKS Valve Spring Set is engineered to support stable and reliable valve operation in high-performance engine applications for the Toyota Corolla GTS and Toyota MR2. Designed for engines subjected to increased RPM and more aggressive tuning, these valve springs help prevent valve float while maintaining precise valve timing under load.
Manufactured from high-quality materials, the springs are built to withstand elevated stress and heat associated with performance driving. By providing increased and consistent spring tension, they help improve valve control, throttle response, and overall engine stability, especially during high-RPM operation.
Designed for direct installation on compatible Toyota engines, this valve spring set offers precise fitment and dependable performance. It is an essential upgrade for enthusiasts building or refreshing engines intended for spirited street driving, track use, or performance-oriented setups without sacrificing long-term reliability.
Features:
Designed for Toyota Corolla GTS (1985–1991) and Toyota MR2 (1985–1989)
High-performance valve springs for improved high-RPM stability
Helps prevent valve float during aggressive driving or tuning
Durable construction to withstand increased heat and stress
Precision fitment for straightforward installation
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
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Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
