G Reddy Circuit Spec Manifold For Toyota GT86 & Subaru BRZ Engine codes : 4U-GSE, FA20 Power and torque gain at mid and high revs 4-2-1 type Full stainless steel Tube diameters : 42 / 45 / 60 mm Made in Japan G Reddy part no. : 10510607 OEM fitting G Reddy Circuit Spec Manifold Specifications Known worldwide for its exhausts, the Japanese manufacturer G Reddy presents the Circuit Spec manifold for Toyota GT86 (ZN6) and Subaru BRZ (ZC6). This stainless steel manifold is provided with a decat pipe, which makes it particularly suitable for use in motorsport. Its 4-2-1 design was chosen to allow for an excellent gas flow capacity. This manifold also eliminates the original characteristics of low torque at mid-rpm and increases performance at high rpm. Caution: After installing this manifold, the engine warning light (catalyst fault) may turn on. In this case, G Reddy recommends the installation of a Celfix, or a remap of the ECU by a professional. Characteristics : Type : 4-2-1Material : stainless steel Diameter : 42/45/60 mm Sound level : 94/94 d B (right/left) at 5225 tr/min (with G Reddy CS-GTS Ver.2 exhaust not included)Weight : 5,8 kg