It seems like you might want:
<?php
$rsProduct = new WA_MySQLi_RS("rsProduct",$ecartdb,1);
$rsProduct->setQuery("SELECT * FROM products WHERE REPLACE(ProductName, ' ', '-' ) = ? AND ProductEnabled = 1");
$rsProduct->bindParam("s", "".(isset($_GET['Product'])?$_GET['Product']:"") ."", "-1"); //colname
$rsProduct->execute();
?>