4EFTE 170PS Turbo Tune
4E-FTE 170PS Turbo Tune Power! 👈 A 4E-FTE In An Engine Bay Target and Philosophy Building a 4E-FTE for 170 hp is a sweet spot because it’s well within the safe limits of the stock internals while still giving a strong bump over the factory 133 hp. At this level, reliability is the main focus: you want to extract extra power without overstressing the rods, pistons, or crank. The key is balancing airflow, fueling, cooling, and tuning so the motor can run cleanly and safely under boost, day after day. Turbocharger and Exhaust The factory CT9 turbo can get close to 170 hp but tends to generate excess heat at higher boost levels. A popular route is to upgrade to a mild hybrid CT9 or a small-frame turbo such as a TD04L-13T from a Subaru, both spool quickly and offer the airflow for 170 hp without creating excessive lag. Whichever turbo you choose, pair it with a free-flowing 2.25"–2.5" exhaust system (downpipe, decat/test pipe, and cat-back) to keep backpressure low and turbine...