Probably the best get out clasue available lol
"BKRACINGPARTS acts only as a retailer on performance parts we can’t and won’t guarantee nothing more than the excellence of our services as an online trader .We aren’t manufacturers of the products we sell so our role ends at the safe delivery of the products .We’ll gladly accept to help with any after sales issues (such as possibly factory faulty items or post office lost item claim forms for all your insured packages).
BUT the customer's expectations on performance and horsepower gained by the vehicle with the use of our offered for sale performance products are of the customer’s own concern.
Customer’s satisfaction on our service and therefore positive feedback SHOULD only be based on the quality of our service and safe delivery of the product AND NOT on the performance outcome of the product you bought, which might be a result of many different factors (tuning experience , other particular requirements such as rejetting etc.).
Satisfaction with the performance gained is subjective and depends on the original customer’s expectations and driving/riding experience and that’s something we can’t be responsible for."