[besthaticouldo]

how safe is the precision kit on a stock motor?

i have around 87k miles and i was thinking about doing this? is my car gonna be ok. i just wanna run it like it is. i will get a new motor but i would prefer not to.

http://focus.c-f-m.com/index.asp?PageAction=VIEWPROD&ProdID=401

thats the kit and i was wondering if there is a BOV included or what?

 

[mike 1]

Its all in the tuning as far as safety goes...

 

[viney266]

I am sure you engine is fine, but if you want to be sure, run a compression test ( or even better a leakdown test ) on all 4 cylinders and check the numbers and if they are good you should be alright. As above, With a good tune.

 

[besthaticouldo]

well is the stock tune on the precision kit any good?

i will have it dyno tuned after with the cam gears and a wideband a/f gauge. would that be enough?