Ok guys my problem..... im loosing power after a reach 6000 , to be more specific between 6000 and 8500 i have new wires and spark plugs... my car has 32k 2004 AT . i have AEM intake and i never had this problem before...it might be because AEM is taking cold air straigh from outside...i dont remember this problem in summer.... sorry for my english .cheers

 

Check your coils a lot of them seem to go out around 30K and also check your plugs.

 

thats what i was thinking.....because my wires and plugs have 2k maybe and i didnt buy new coils because they looked fine.,,,can u guys give me some good website that i can buy this coils?

 

Looking fine won't cut it. Either do a search for the "how to check coils" thread or just get new ones.

 

and i should change them every..... how many k ??? 30 ?

 

I would do so at 30k............if they are the stock coils. But, I would be very tempted to test them first before spending the money.

 

Alright....how can i test them ?