45mm Equal-Length Exhaust Header and Downpipe Kit for Toyota GT86/Subaru BRZ FA20 2.0L Flat-Four

This equal‑length 45mm header with matched downpipe optimizes exhaust pulse scavenging, reduces back‑pressure, improves throttle response and delivers richer natural flat‑four exhaust tone for Toyota GT86 / Subaru BRZ FA20.Constructed from premium 304 stainless steel, this equal‑length manifold solves unequal exhaust pulse interference from stock header. Φ45 mandrel‑bent tubing maintains consistent exhaust gas velocity across all cylinders. Precise equal‑length runner design maximizes scavenging effect to unlock FA20 engine potential. Full TIG welded construction resists high exhaust temperature and vibration. Polished mirror surface finish. Direct bolt‑on replacement, complete gaskets and bolt hardware included. Excellent upgrade for street driving and ECU tuning projects.

● Toyota GT86 FA20 2.0L Flat‑Four Engine

● Subaru BRZ FA20 2.0L Flat‑Four Engine

● Premium 304 stainless steel material, high temperature resistant and anti‑corrosion

● Equal‑length runner manifold design, optimizes exhaust scavenging effect

● Φ45mm mandrel bent smooth tubing, reduces exhaust restriction and back‑pressure

● Full TIG argon welding for strength, anti‑crack under thermal cycling

● Polished mirror surface finish, gorgeous engine bay visual effect

● Improve exhaust efficiency for better throttle response and power gain

● Brings deeper, sportier flat‑four boxer engine exhaust sound

● Direct bolt‑on installation, reuse original mounting positions

● Suitable for street use and FA20 ECU tuning modification

Material: 304 Stainless Steel

Tube Diameter: Φ45mm

Manifold Type: Equal‑Length Header / Manifold with matched downpipe

Tube Process: Mandrel bent tubing

Welding Process: Full TIG argon welding

Surface Finish: Polished Mirror Finish

Applicable Engine: FA20 2.0L Flat‑Four Boxer Engine

Compatible Vehicle: Toyota GT86 / Subaru BRZ

Installation: Direct bolt‑on

Application: Street Performance / FA20 ECU Tuning Build

Equal‑Length Exhaust Header Manifold

Matched Downpipe

Full Set OEM Matching Installation Bolts & Hardware Kit