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Don't recommend Duraflex products.... Had issues fitting a replacement SLK sport package bumper. Expect lots of cutting, swearing, sanding, fiberglass pricklies, more swearing, sanding, filling... not in that particular order.
seal the undercarrage ,,front spliter and side skirts to create a tunnel effect ,,,rear difusser starting at rear axel and finishing either at rear of car or 50mm extra ...........8 to 10 degrees is optimal for difusser rake...
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David Roberts
2010 Jaguar XKR Coupe - 510HP Stock - Liquid Silver Metallic
928 Owners Club Co-Founder
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Are you in possession of the complete belly pan assembly? front and rear? Is it on the car? These coupled with the factory front air spoiler on an S4 make a pretty good amount of ground effect.
Are you in possession of the complete belly pan assembly? front and rear? Is it on the car? These coupled with the factory front air spoiler on an S4 make a pretty good amount of ground effect.
+1
I do not see a technical need to do anything aerodynamically wise with the S4 other than to make it work as designed unless of course one intends to go faster than 170 mph. The problem with aerodynamic mods is that they are more likely to create a negative effect than a positive one unless thoroughly researched in a wind tunnel etc. At some point around 90 mph the car seems to take up a bit of a squat, difficult to describe but one just feels it is hunkering down more - I presume this "feeling" is due to the ground effect kicking in- if one has the under trays fitted.
Keep in mind that most of this stuff, and for sure the AIR stuff are "Race Parts", not perfectly fitted/finished Aero kits like you can by for a Mustang. They WILL require cutting/fitting/sanding to fit properly. I sold a fair amount of the AIR stuff in the past and have installed a few kits. They are solid parts, almost a little too heavily made, but look great if installed correctly. I recommend a body shop do the install for most people.
08-09-2018, 06:38 PM
