Payment Methods

Payment Methods

Thanks for choosing Top Tuning Boost. To keep checkout safe, our store uses industry-standard SSL encryption and secure payment gateways. We do not store your full card details on our servers.

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Pay with PayPal

Log in to your PayPal account to complete payment securely. Orders paid with PayPal are typically confirmed immediately, and you’ll receive an order confirmation email right away.

  • Buyer Protection applies according to PayPal’s policies.
  • Fast, secure, and no extra fee from our side.

PayPal Guest Checkout (No Account Needed)

Don’t have a PayPal account? No problem — in many regions you can check out as a guest on PayPal and pay directly with your card.

  1. At our checkout, choose PayPal and click Complete order.
  2. On the PayPal page, select Pay with Debit or Credit Card (wording may vary by region).
  3. Enter your billing details and complete the payment — no PayPal account required.

Availability of guest checkout is determined by PayPal based on your region and risk controls.


Credit/Debit Card via PayPal

You can pay with your Visa, MasterCard, American Express, Discover, etc., securely through PayPal’s card gateway.

What you’ll need:

  • Name on card
  • Card number
  • Expiry month & year
  • Security code (CVV/CVC)
  • Accurate billing address (matches your card issuer’s record)

Tip: If a card is declined at checkout, it’s often due to your bank’s security filters. You can try another card, use PayPal/Guest, or call your bank to authorize the purchase and try again.

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FAQ & Troubleshooting


Can I pay without a PayPal account?
Yes. Choose PayPal at checkout, then select Pay with Debit or Credit Card on the PayPal page to use guest checkout (availability varies by region).
Which cards and currencies are supported?
Major cards (Visa, MasterCard, American Express, Discover, etc.) are supported through PayPal. PayPal supports many currencies and may convert for you at checkout. Your final charge and conversion rate are determined by PayPal and/or your card issuer.
My payment was declined — what should I do?
Try these steps:
  1. Try PayPal (logged in) or PayPal Guest.
  2. Use a different card.
  3. Call your bank to authorize this online purchase and try again.
When will I receive my order confirmation?
Immediately after successful payment, we’ll send a confirmation email to the address you provided at checkout.
Refunds & order changes
If you need to modify or cancel an order, please contact us as soon as possible. Approved refunds are returned to the original payment method via PayPal. Processing times depend on PayPal and your bank.

Need Help?

Please reach our support team — we respond promptly on business days.

  • Email: service@toptuningboost.com (preferred)
  • Phone: +1 (323) 922-3454 (urgent issues only)
  • Business Hours: Mon–Fri | 9am–5pm (GMT-08) Pacific Time
  • Fulfillment Center: Fontana, CA 92335, USA
  • Additional Warehouse: Pottsville, PA 17901, USA

Notes: PayPal guest checkout/card availability is controlled by PayPal and may vary by country/region and risk checks. Some banks may place a temporary authorization hold during verification; this is automatically released if a charge is not captured.