98slvrGT

I gots a 1998 GT and all it has is a ram air intake(but I ordered a CAI today) and Flowmasters. When I first bought the car it seemed so MFing fast, but now it seems like it has gotten slower. I dont think it is because I got use to the power, but I heard mustangs dont like hot weather and it just recently became very hot and humid so that could be it but what do you guys think. Also what would be a good spark plug to get for my car it has the originals in it with 57,000 miles. May be it needs a good tune up but the filter is clean and its a K&N so theres no air problem. Let me know what you guys think. Ohh and by the way I completely destroyed that Tiburon that was talkin smack about GT's I made him my woman

monkeydude3

yeah dude almost ALL cars seem weaker in hot weather. They start running less fuel.

I'd reccomend just going to autozone and ordering the OEM spark plugs from motorcraft, exactly whe the car needs and it sounds like your car is almost stock so that would be a perfect plug. I run them, and it loves it. They are like $2.50 each or something?

You should not need more than plugs. Do a set of plugs, clean the intake, and run a few bottles (at once) of injector cleaner through a tank of gas. I would also look into doing a coolant flush on it too, may keep it a bit cooler.

George

phantom1

If you are gonna do a tune up, alot of guys on this site highly reccomend the NGK plugs. That's what I'm installing on my GT. Don't forget to do the Fuel filter either. Go OEM on that one.

monkeydude3

well next time I will try NGK. I have had good success going OEM with those

rbstang

id suggest pureolator over motorcraft for fuel filter... thats just my 2 cents.

monkeydude3

consider it considered. It's on my list of things "to do" to my car. ::sigh::

after spending a month laying under it doing trans and gasket work, I don't feel like doing it again soon. But that comes with owning a Mustang that you want to go faster and last longer

ajspellm

where is the fuel filter located?

redass02gt

right in front of the gas tank. you'll see it when you get under there.

ajspellm

thanks