How can that even be a good thing for at TBI or TPI car? That's in other words mean you have a catalytic converter or even 2 that's can get nasty from carbon or oil. I would think twice before I did do that to a newer car. A carburetted car it's a hole other thing.The heat soak is done with the spray bottle i will post the link.After driving about 20 miles today i can feel a nice difference in the throttle response and it just runs alot smoother at all rpms. She is going to smoke when first started but goes away pretty quick.
Play it safe are my suggestions.
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