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K

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Discussion Starter #1
My car has 39000 miles. Recently I've noticed a decline in throttle response and peak horsepower (40rwhp dyno-proven decline).

I never changed the stock plugs or the fuel filter.

Should I send it out for a 50,000mile service(or whatever X0,000mile service they have). Or should I just change the spark plugs, coil pack(?), fuel filter?

Are there anyother easy stuff that I could check for ie air filter,spark plugs...?

Thanks,
Kaz
 
S

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Discussion Starter #2
Check for boost leaks. Thats the next obvious solution
 
K

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Discussion Starter #3
What does the 50,000 mile service consist of?

How often do you have to change the plugs, Coil pack, and fuel filter or anyother parts that I should be aware of?

Thanks
Kaz
 
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