Before deciding on a BOT, its best to know what you’ll be expecting from it. The price for investing in this will be high but if such a price yields the power being sought for, then proceed so with a fair bit of warning. I had a BOT built into my Honda VTEC engine recently. The power that it delivers are commendable however, the downside to it was the constant visits to the workshop trying to sort out the issues plaguing such as erratic idling, downshift issues, etc… This will take time to resolve as well as money hence, the price of putting a BOT might not necessarily stop when the turbo is installed but what comes after that.
I had mine installed in a respectable workshop in Section 51A (near Jalan 222). Convinced by the years of experience that they had with modifications, I was hooked on it even when the price was higher compared to other workshops. The layout of the turbo was visually good however, getting it tuned plagued by constant issues that arose after that made the drive less pleasurable after a couple of months of owning it. This persuaded that such constant headache was not well worth it unless it was my ‘play car’ which in this case was not. Naturally aspirated (NA) cars are not made to handle forced induction systems due to certain constraint within the engine which was designed as such. The heat that was increased with the installation of the turbo was at one time so high that the sockets, wires, etc.. just melted away creating a whole host of other issues for me to sort out.
Conclusion, although a thrill to have the pinnacle of what you can possibly do in the car modification sector, it is for me and this is my opinion from actual experience, the end did not really justify the means. Get an actual turbo vehicle meant to be as how it was designed by the OEM and save the headaches & heartaches.