The stock joint pipe is not only narrow, it also has flattened sections which severely limits the performance gains from fitting a high efficiency manifold.
However, our new pipe has its sections welded together to maintain a wide Φ60.5 diameter throughout with additional weld beads on the inside for rigidity.
Even with the stock setup, handling around the joint pipe pass-through is challenging given the limited clearance. However, our dedicated engineers have achieved precision clearance even with the wider pipe.
COMPARISON VS STOCK
EXHAUST MANIFOLD SIDE
Larger diameter for improved exhaust efficiency and precision clearance design
JOINT PIPE x1
FLANGE BOLT x1
STUD BOLT x2
FLANGE NUT x4
BOLT SMOOTH PASTE x1
SCION FR-S / SUBARU BRZ (Designed for Competition Use only)
PART NUMBER: 431104