The engine is effective good and operates excellent. Delivered clean up with plugs in it to protect from injury. Only detail I can say is it appeared to get some time to ship to my area. I assume when the product is major and hefty you just have be patient. https://donovanhmoji.bloggerbags.com/37766631/top-https-www-nwjdmmotors-com-product-jdm-nissan-skyline-rb26-motor-for-sale-used-rb26-engine-secrets