I知 going to be getting a 2004 s60 2.5t and I知 looking for ideas for boosting hp, it already has a performance chip, but I知 also looking for ideas for driving experience to like how to make Handeling better and just make the car more fun to drive, also looking for ideas on how it looks I知 thinking of maybe making it into a wide body. Anybody else have some ideas?

 

Ah - 18yrs old, 1st car, I understand and have been there. It will take a few years, or many to quell the desire to spend more than it could ever be worth - ( Eventually I bought a Porsche Turbo and was able to just drive it - rather than constantly modifying crap. But it was a fun ~20 years modifying crap!, sorry "my beloved crappy car")

 

As many have told me with my 2.5T, the best cost effective way to increase power, sell it and buy an R

Ive done a few minor things to my car, nothing really for power, and it is probably where I will stop. All I did was coilovers (~$1000 for BC racing) and powerflex CA Bushings (~$250), fancy intake pipe from snabb because of tax return moneys lol and you get better turbo wooshes (~$200) and I picked up a rear sway bar off a v70R to swap out for less body roll (~$40)

Best mods for performance, would be a high flow downpipe, and an upgraded FMIC plus a tune. Not sure if the tuning chip in your car is one of those plug-in OBD2 style ones.

Sway bar and suspension is the best investment I had on this car. If you want to spend beacoup bucks on the car, you can get KW coilovers, but they are pricey.

powder coated CAs and Intake manifold added about 50hp and also repainted my spark plug covers for about an extra 15hp

 

How did you get 15? my butt-dyno said I only got 8 from mine! But it still shaved .0016 seconds off my 0-60 time, unfortunately my transmission is slipping now - so I'm looking for the trans tune up in a can at autozone, that will fix it, right?

 

between that and few oil and fuel additives, you should be good to go!