Under Uniform Commercial Code (UCC) Sections 2-513(1) and 2A-515(1), the seller of the exhaust pipes must provide an opportunity for before enforcing payment.

The correct word for the blank space is: inspection.

Explanation:

The Uniform Commercial Code (UCC) is the set of rules governing financial transactions across the U.S. The UCC Section 2-513(1) states that unless stated in the contract, buyers have the right to inspect the goods being traded at any reasonable location before making the payment for them.

Also, the UCC section 2A-515(1) states that the acceptance of goods happens after the buyer had a reasonable opportunity to inspect them.

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