I just bought a 2006 G35 Coupe fully loaded with the Rear Active Steering package. I want to add an aftermarket exhaust and I heard that the R.A.S. will pose a problem. Does anybody know if there is any truth to this?

 

Welcome to the boards!

When choosing an aftermarket exhaust, you must research this issue before purchasing. We know for a fact that the HKS HiPower Ti exhaust will have clearance issues with the HICAS unit, we have tried installing one and we ran into some problems. You can alleviate this problem by putting some kind of material where the right canister rubs against the HICAS. Other exhausts that should not have issues are muffler canisters that are similar to the stock unit like the Fujitsubo.