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PostPosted: Sat Mar 03, 2012 11:07 pm 
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I was able to open up the dialogue regarding the rocker panels and side exit exhausts again with NASA. I argued that those there were taking the -0.4 Mod Factor for floor pan modification for exhaust clearance only should be permitted to have that exhaust exit the vehicle via the rocker panel or the door without an additional Mod Factor, and without being illegal, as that was the known intent when this Mod Factor was initially written into the rules. The position was excepted, and additionally, it was determined that if some were able to have side exit exhaust with this Mod Factor and going through the floor pan, then others should be able to have the same modification through the rocker panel if the floor pan is not encroached. (remember, vehicles are different, and rocker panel placement in relation to the floor varies). However, the frame rules stay, as written. So, if the exhaust went through a frame rail to get to the rocker panel, it is still illegal. But, for those with side exhausts that exit the rocker panel with or without floor pan modification for exhaust clearance, but do not modify the frame rail, it will be legal with a -0.4 Modification Assessment. Or, the car can just be modified back to an OEM configuration by closing up the holes, and rerouting the exhaust without going through the floor, rocker panels (and especially through the frame).

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PostPosted: Mon Mar 26, 2012 6:09 am 
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Can side skirts be added? On a C5/C6 they install over the OEM rocker, but do require some cutting of the OEM piece to attach them. See the ACP bits pictured below as an example...

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Image

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