Hayabusa Turbo Exhaust Manifold

Smooth equal radius bends – A smoother shape equals more flow and less backpressure/pressure drop
True merge collector – All tubes are aimed at the turbo inlet
Lowest back pressure and best flow possible – pressure and flow go together for less heat and more power
Investment cast – Consistent shape and quality with NO welds
Constructed of 347 Stainless Steel – Better strength and better high temp corrosion resistance
All junctions feature ample radiuses – More details for the absolute best strength
Thick main flange/spigot support – Assures a perfect, consistent fit
3mm (.118”) thick tubes – Overkill for the strongest available
15mm thick turbo flange – extra heavy for the best stability and zero warping
Cylinder 1 & 4 upper/outer mount holes are slightly oversized to 9mm – Allows for expansion and contraction without breaking studs
Lower mounting holes are slotted – Allows for easier insertion of mounting bolts
Turbo mount threads (10 x 1.5) are produced with a thread forming tap – Formed threads are stronger than cut threads