Dyno Day
Bob didn't mention anything to me about rear diffusers, but I can see this being an issue depending on the style and ride height. I have a rear diffuser but it tucks above the mufflers (custom). Their straps get right up next to it, but clears. So chances are if its the typical type that runs under the mufflers, it could be in the way.
+1 on removing the rear diffusers or anything that will interfere with drift office strapping your car down. I've been to several of these dyno days and the drift office crew are really good of making sure your car stays in place. Well worth the time to get that baseline numbers before modding to see if that "expensive as fcuk!" power part actually performs.






