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Old 08-12-2012, 04:09 PM   #22 (permalink)
Tango Charlie
Deadly Efficient
 
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Join Date: Jun 2008
Location: Goshen, Indiana
Posts: 1,234

Olivia - '03 Pontiac Vibe base
90 day: 36.01 mpg (US)

R2-D2 - '00 Honda Insight
90 day: 58.81 mpg (US)
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Not planning on any sealing per se. Just going to keep it as close to the car as I can. The diffuser's front edge is pretty close to the lower surface of the bumper. I don't think there's a lot of high-speed airflow there, as it's right behind the rear axle and muffler. Take a look at it come Labor Day and tell me what you think.

I'm planning to eventually install a rear belly pan which will help air flow transition onto the boat tail.
But it won't happen before Labor Day.
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