biggrigg

I am in the process of changing skylight over shower. I want to know if there is any reason I can't use 100% silicone sealant to seal around skylight and roof seams instead of the self leveling roof sealant usually used. Our motorhome is class A 43ft with fiberglass roof. I could be wrong but it seems like the silicone would last much longer. Please any suggestions will be helpful.

I am considering putting a 5050xl aero turbine muffler on my 2008 Travel Supreme 400 ISL cummings. Brazel RV out of Oregon was at Quartzite, Ariz., and almost sold me on one. Promises of more power and better mpg. Has anyone had this muffler installed on their coach, and if so, what are your thoughts ... mainly regarding mpg and power? And, how loud was it (I like quiet). Also, they said that an AFE air cleaner in combination would help immensely. Any feedback would be greatly appreciated. Thanks.