okay thats a pretty sweet idea, but my friend had a old 4.6 and trust me, when those ranges hit 100+miles plus, the car is finished because you will be at the dealer more than the gas stations, lol.......I dunno who would buy that kit especially when it costs more than a used Range anyhow. My buddies went for 5g's with 160000kms, after 5 years and he bought it for 80gs' .......LOL!

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" Despite its supercar attributes, the M5 still doubles as a soberly practical, spacious saloon - only with the ability to scare four passengers in comfort all the way to the local coronary unit". Top Gear