dude
here are few suggestions..
that doesn't cost _at all_
a) take spare tire out of your trunk
B) in fact.. take everything out :) and while you cleaning your trunk take all junk out of thrim as well :)
c) have about 1/8 of gas in your tank
that doesn't cost _that_ much
a) intake ( will give you some hp gain )
B) exhaust ( will give you some hp gain too )
that cost _more_
a) turbo charge?:)
but then again.. if you ending up with installing turbo kit you'd want to have your car on stuck level already pretty high..
so i would suggest you to upgrade your car from LS400 to GS400 :)
thats what i did, i had a '94 LS400, nice car.. but its just not a racing car.. its a luxury car, it always was and it always will be.. ever though what LS stands for? [L]uxury edan, it never meant to be a racing car.. never..
so what i did, i sold my LS400 and got myself a nice GS400, then i put intake, ecu, and now I have 330hp-350hp right there..
an ultimate pimp mobile..
heh.. even two,
i like car so much i got myself two lexus gs400 :)
or there, look at VMF :)