Performance Headers & Exhaust Manifolds
The header is where exhaust gases first leave the engine — the right primary diameter, length, collector design and merge angle releases trapped power and improves throttle response. SP Engineering carries equal-length 4-1, 4-2-1 and tri-Y headers for naturally aspirated builds, plus T3/T4, V-band and bottom-mount turbo manifolds.
Top Header & Manifold Brands We Carry
Tomei Expreme (Ti, Unequal), HKS (Super Manifold, Exhaust Manifold), Borla (Header, S-Type), ARC (Stainless Manifold), Tanabe (G-Power, Touring Medalion), JBA Performance Exhaust, GReddy (Equal Length), Megan Racing, OBX, Skunk2 (MegaPower, Alpha), DC Sports, Apexi Power FC, Berk Technology, Full Race, ETS, Damond Motorsports.
Popular Vehicle Fitments
Honda Civic Si/Type R, S2000 F20C/F22C, Integra DC2/DC5, K20/K24 swap; Toyota Supra A80 2JZ-GTE/2JZ-GE, A90 B58, GR86, AE86 4A-GE; Nissan Skyline RB25/RB26, Silvia S13/S14/S15 SR20DET, 350Z VQ35, 370Z VQ37; Mazda RX-7 FD3S 13B, Miata; Subaru WRX/STI EJ20/EJ25 (uppipe + headers); Mitsubishi Evo 4G63; BMW E46 M3 S54, E92 M3 S65, F8x S55.
Headers vs Turbo Manifolds — Material Matters
NA headers want equal-length primaries (4-1 or 4-2-1) in 304 stainless for low-RPM torque and high-RPM peak power. Turbo manifolds want short, equal-length runners merging into a properly sized collector — stainless 304/321 for street, Inconel for high-EGT race builds. Cast iron manifolds are durable but heat-soak; tubular stainless is the upgrade path.
Free Spec & Tuning Advice
Email sales@sp-power.com with vehicle, target power, and whether tuned. Most aftermarket headers require a tune to optimise A/F ratios and avoid CEL.
SP Engineering — Exhaust specialists since 1996.
