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This article was originally hosted on a no longer live site called I want to be like Mike. Another very incomplete version is hosted on mx6.com. Below you will find the most complete original version of the article thoroughly describing the workings and fuctionality of the Mazda VRIS system in its application to the 2.5L KL03/KLDE. I hope you all enjoy this great little article. This is the external view of the KL03 2.5L VRIS intake manifold. Other variations of the 2.5L V6 have slightly different manifolds in performance and tuning, but the fundamental theories behind their operations are
Ok so my roommate has a 1987 Mazda 626, we cant find shit for aftermarket parts for the engine. Or any turbos to upgrade to. So I was wondering if anyone has ever put a Mazda 2.5L V6 KL03 or KLZE engine in a old school 626 GT that comes stock with the 2.0L turbocharged. We still plan on keeping the car turboed but would prefer the kl engine if possible. I dont know shit about these old school 626 cars. I only know the 93-97 probe gt/mazda mx6 cars. Any info on this would be a big help. I know i would have to swap the trans, engine, computer, axles, but not sure what all would have to be p