Bought a few off these. Chain barely even lasts a week before it stretches. Tensioner are rubbish, spring breaks. This hasn’t happened once. You can’t talk to the company, they’ll tell you they’ll ask the warehouse and never get back to you. I have two cars with damage to the cylinder head because of the chain and tensioners. I’ve been doing this for 7 years and have never had a problem until I started buying these. Don’t go for the cheaper option