Then your turbo will sh*t itself and you'll buy a bigger one cos who doesn't like a big one?!
Before you know it, cheap as possible becomes 15 to 20k over 2 years. Much, much more if you pay someone to do it.
The golden years will be skids galore and smoke for the masses. Soon enough you'll drive like a grandma as your household budget grows weary of having fuel and tyres as a priority.
By the time you realize it's too late your wife will have left you and your kids won't recognise your face cos you went for milk and cigarettes and came back with oil and octane booster some ten years later. Your cat/dog/chicken will be your sole companion in life and eventually they will leave you/die too cos you forget to feed it. You need moar powah!!!
Parts break, hearts ache, things will twist and for discounts you'll wrist.
80 years come to pass and as your soul flees this physical realm...you hear one last call to arms...choo choo ch ch ch ch ch ch psshhhhh.
For this poetic embrace, I only have one por favor, fix your car but only once but when arrived nevermore.
Jks, do what you like