Convert 2.5l to turbo?

You can do some reading in the technical forums at

especially the Conversions and Aftermarket Forced Induction forums. In short though, aftermarket turbocharging of the 2.5 normally aspirated engines is generally not the best idea, durability tends to be poor and you wouldn't want to run more than moderate boost of around 5-7 psi. It's also a good amount of work to do it properly. A full engine swap is regarded as the better way to go, complete WRX and STi engines are readily available on the used market. Such a swap is also a lot of work though, particularly with regard to the electrical work/wiring required. You also need to be aware of the inspection and emission requirements in your state and county as this may render a swapped or turbo'd car unable to pass inspection. You should further consider the fact that a project of this nature will cost a good amount of money (it's always a lot more than you initially budget for) and will keep your car off the road for a while. If you aren't willing or able to take on a project of this nature then you'd be best off trading or selling your car and getting a factory turbo to replace it.

excellent post.

Carl

Good info .. concise.

Thanks