Standard Motor Products EGV590 Valve Review

As an automotive enthusiast, I was hopeful when I purchased this product. However, as a result of my tests, I determined that the performance was not up to par. The emissions output was noticeably higher after installation which was a major drawback. On the positive side, the installation process was fairly easy. Overall, I would not recommend this product..

Automotive performance is everything and my car has been running like a dream since switching to this product. After trying this quality replacement, I noticed an immediate improvement in engine power and acceleration. My only complaint is that the installation instructions could have been a little clearer... Overall, I highly recommend this product for anyone looking to improve their vehicle's exhaust and emissions system..

No problem received. Screwed in quickly and easily. Worked well, cleared engine code PO403, eventually cleared program code after enough cycles. Just in time for the smog check.