The FA20 is one of the most underrated platforms to build — but only if you do it in the right order. The ZN6 chassis punishes lazy builds. Throw a tune on a stock header car and you're leaving 30+ whp on the table. Stack mods without addressing the torque dip first and you'll wonder why your buddy's BRZ feels faster. The 2013-2016 FR-S rewards patience and a real plan more than almost anything else in this price range. Here's how to actually build one right: → Why the exhaust side of the FA20 should be your first dollar spent → The suspension philosophy that keeps this chassis honest through corners, not just low → The exact wheel spec that clears brakes, fills the fender, and doesn't rub on coilovers → A full build map so you're not guessing what comes next Too many FR-S builds stall out because people buy parts out of order and run out of budget before the car feels complete. This is the sequence that actually works — built around how the platform responds, not what looks cool o...