You can also use a high temperature silicone hose. If the first hose lasted close to 100,000 miles you will probably get at least that again out of an upgraded hose...
There is really no way find out whose tune you may or may not have. Sometimes you can identify if you have a tune by trying to set the cruise control at less than 30(?) mph.
Many generic or sub par tuners will also program out certain error or engine malfunction codes.
In my novice opinion...