Toda Racing 4AG (AE86) Exhaust Manifold Ver.2 (4-2-1 SUS)
Original 2000 version of the 4-2-1 design. For ultimate power the 4-1 type exhaust manifold design is the one to use basically. The problem is that power is only made from 4,500 rpm in the process removing drivability. TODA racing have designed a 4-2-1 system which restores drivability 15% more torque* with only 1.5% loss of power*
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