KIA K5 (Optima SX) tuning (Turbo upgrade version) rolling test

KIA K5 (Optima) turbo upgrade is very money-worthy item. It can easily gain additional 100hp~150hp. Many tuners are launching new turbo kits for K5 owners. 

Pross is well known tuner here in Korea due to its nice ECU mapping code. It is safe, well-balanced and faster than any other tuner in Korea.

Have you read our previous post about ECU mapping?
                               -> KIA K5 turbo ECU mapping
                               -> Hyundai Sonata turbo ECU tune                

Now, it is time to check how much fast it is..

KIA K5 (420hp with turbo upgrade) vs BMW 1M (chip tune)

*1st running

*2nd Running




* K5 ( small turbo upgrade 350hp) vs S4 (Chip tune about 400hp)

*1st race

*2nd race


When it comes to the real race on the track, I am very sure S4 can smoke K5 away. But on the daily road or highway, S4 can not ignore about K5's performance..