Sidebar: Track-side Preparation

EVO models in the UK have traditionally been offered in an FQ-trim that consists of additional components and modifications unavailable in the US. These trim enhancements nod toward the EVO’s rally and track racing heritage and include uprated power output, larger brakes and functional aerodynamic enhancements. The Vortex Generator sits atop the roof line and conditions air flowing over the vehicle. However, some US models can’t take advantage of the vortex generator due to the presence of the combination navigation/ satellite radio antenna. Rexpeed offers an ABS-plastic version of the FQ vortex generator that replicates the fin angle, size and placement of the original unit that works with the factory roof-mounted combination antenna. The Rexpeed unit attaches with 3M adhesive and antenna clips and is offered pre-painted in U.S. OE colorways.

Most HPDE and event safety regulations require the driver and passenger windows to be open during on-track sessions. In a sedan platform like the EVO, this generates a wind-catching and buffeting effect in the rear seating area. Completely opening the rear windows worsens the buffeting, but only partially opening them creates stress on the glass and window rails. To better promote air flow all the way through the cabin, our D’GARAGE EVO runs Rexpeed rear window vents that simultaneously vent pressure from the cabin and provide a solid structure that simultaneously clamps and frames the rear glass, avoiding flex and possible damage.

Curvy Creations

The installation of the intercooler kit and downpipe created a powerband that offered an overall peak increase of 9 horsepower while generating an additional 38 lb-ft of torque. These peak numbers were achieved without raising the maximum boost level. Additionally, more power was created earlier in the powerband with much greater increases than the peak horsepower metric illustrated. The re-shaping of the curve in the low and middle ranges of the powerband indicates more usable power in those areas, a necessity for this EVO to perform its track-day duties well. Up next, we’ll continue to increase efficiency and test the limits of the factory turbocharger. Stay tuned.

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Parts List