Titanium retainer, strengthened valve spring, higher raise camshafts and strengthened stem seals upgraded to sustain high-end overall performance I am more than happy Using the customer support. I have not obtained my engine still but thus far so good. thankyou Exceptional and quick assistance!Quotations are quickly and straightforward for getting. https://https-www-nwjdmmotors-com97700.newsbloger.com/33110273/the-definitive-guide-to-nissan-rb-engine-for-sale