please help!!!!!



well long story short... my buddy has a 300z and this other guy has a subaru inpressa .. i got the challenge last summer and i have not been able to find a good mod for my beast..mmm.. so i talked to my jag mec.. i asked about getting a upper and lower pulley upgrade... and he responded wit.. jags engine is very fragile and most aftermarket parts will break down the xjr engine.. so now im confused??? i want to mod my beast but i dont know what to get??? so.. yea... mmm... i pretty new to the site and i have read someof your post... i know u guys are pretty high speed so.. please help.. and yea.. this is what i wanted to do:

1 k n air intake
2 upper and lower pulley upgrade
3 borla cat back??

if there is something better or is not good for the car i know u guys will help me beat these... *******s..

 

You can change the rear end to a 3.58 ratio with LSD this will give you quite an increase in acceleration. If you are interested I have a complete setup I may part with. As far as engine upgrades it is all in how much do you want to spend.