I am a young driver and i would like to put a cherrybomb exhaust onto my renault laguna 1.6 2001 roughly how much would this cost to fit and how much extra to insure?

Back in the 70s such exhausts were outlawed so we went to the next best thing; corvair turbo mufflers which look stcok instead of the red cherrybomb mufflers and offers the flow thru benefits with the deep throaty sound but passed any state laws and usually was cheaper too, and beat many insurance classifications for hot rods