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    TUNE ?

    My 99 GT only has a MAC catback and a K&N airfilter. I recently installed BBK longtubes and an offroad h-pipe. Would this make me run lean or rich ? My check engine light is not on thanks to my mil's but should I get a tune done and tweak the timing a bit aswell as make sure that I'm not...
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    K&N air filter

    I just installed a K&N air filter on my 99GT and I noticed now that when I get on the gas while driving I can hear a hissing noise. It is more noticable at lower rpm's but I can still hear it in the higher rpm's aswell. Is this normal ?
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    ALLIGNMENT ?

    I just got my longtubes put on my 99 GT vert but my front spring were taken off for the install, I have a 2" drop in the front with H&R supersport springs and MM CC plates, do I have to get ANOTHER allignment done ?
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    Longtubes OR Shorties

    Longtubes OR Shorties ? I have a 99 GT 5spd with a MAC catback and a MAC hi flow catted h-pipe. My car is also lowered 2" in the front with H&R supersport springs. I dont plan on getting a supercharger, although I am looking at different cam options for the near future. The thing is I want to...
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    MOTOR OIL

    I'm about to get an oil change on my 99 GT with 37 000 kms. I'm either going with AMSOIL or MOBILE 1 SYNTHETIC. My question is this. Ford recomends 5w-30 but should I go with 10w or 15w for the summer heat ?
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    lowering question

    Does a lowered car look lower with 18" rims compared to 17" rims ?