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Review on πŸ”₯ MILLION PARTS Exhaust Manifold Header: SDD-HDSGY99 Explained - Features, Specifications, and Benefits by Jason King

Revainrating 2 out of 5

With more attention to detail, a great product can be created.

Manifolds look great but driver side mating flange alignment is wrong. The supplied passenger side fasteners are too short or the ball is too large to allow the flange to close sufficiently, but I used 60mm stainless steel bolts with lock washers and nuts as a bolt had to be fitted from below. With a few changes, a great product can be made.

Pros
  • Reduces exhaust drag, avoids cylinder to cylinder interference, can improve engine efficiency
Cons
  • Very expensive