as they said tin turbo ion engine , especially 4cyl is just for show. Here in thailand we have doen engine and my brother here at teh shop had done a 96 Suprs and took out the twin turbo and put in a very much larger single turbo. Everythin has a purpose. On ^cyl twin can have its advantages and disadvanteges, I did a Toyota Aristo i had, a 96 being the weight of teh car (92-97 GS300)i Used to turbos, a larger one (T65/Konimurin) up front and (T40/T4)on the rear exhaust manifold(2JZ-GTTE engine) the small one would spool up easilly and at lower RPM giving me lower RPM hp and tq and the larger kicking in as should upper in the RPM band giving max pwr and tq(the whole point was to eliminate turbo lag) but on a 4cy there is really no need for twin turbo.