But if you wish to add additional and arrive at 400 HP, you should change your OEM turbochargers Along with the GTR RB26DETT N1 turbochargers, get a large intercooler and an MLS gasket head. The block may also be reworked to sustain the ability output. Another underrated mod on RB https://nissanskylinerb26engine76300.onzeblog.com/31180766/rb26dett-engine-for-sale-fundamentals-explained