BMW M4 Conquers Town and Track
The transformation Greg Silva’s BMW M4 has gone through over the years is not to be understated. We have been following it since the day Greg bought it. Now it is a unique, multipurpose vehicle that has dual personalities. From obvious accents like the RevoZport Aero Kit to the intricate Klassen ID wheels to the purposeful interior, Greg’s M4 has come a long way and has looked good doing it on the street and on the track.
Let’s start with this car at face value. There is a bit of layering happening with the aero package; featuring both factory M Performance and a full RevoZport M4 aero kit are just one of the custom touches that allow the BMW M4 to conquer town and track. The RevoZport kit features an add-on front lip, to work in conjunction with the M Performance frontal elements. It also includes brake-cooling ducts for improved performance. Lastly, the side skirts, front and rear wheel arch accents, rear diffuser, and GT wing bring the entire package together to create something truly menacing in appearance. It looks very pissed off.
Under the hood, we find an array of angular, perfectly accented carbon fiber bits. The RZ M4 is equipped with the full Dinan S1 package. When the hood is popped, the Dinan intakes create a beautiful line for the eye to follow from each side of the front end. Dinan’s S1 package is designed to improve upon the factory torque curve without getting too peaky, all while retaining the reliability one would expect from a factory engine.
Consisting of Dinan’s own intake and ER charge pipe, an Akrapovic down and mid-pipe, and an Eisenmann GT4 exhaust, the breathing side of things is improved greatly. Additionally, the GT4 exhaust – Straight Pipe- saves thirty pounds without a muffler.
Over the course of the build, Greg found himself more and more interested in performance. It’s one thing to build a show or street car, but to have something equipped for the track requires a different thought process. The newest additions to this performance package are the Recaro Profi XI seats and Fall Line Motorsports harness bar. These pieces not only look great in the M4 but give the driver a much better sense of precision at the track.
While Greg’s car has changed immensely overall, there is still more to come. For the most part, however, the car is nearing what he says is a good resting point. Easier said than done in the internet forum environment we live in these days. It’s not easy knowing when to stop, even harder to fend off the constant need for more, more, more.
This car is the real deal. Checking in with dyno numbers in the 495hp and 475 lb-ft range, it was recently clocked at a thunderous 140 mph at the end of Thunderhill Raceway Park’s front straight during a track day. When function matched form, it is a beautiful thing.
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