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Larger diameter for improved exhaust efficiency and precision clearance design
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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. |
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JOINT PIPE (1) |
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GASKET (2) |
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FLANGE BOLT (1) |
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STUD BOLT (2) |
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FLANGE NUT (4) |
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BOLT SMOOTH PASTE (1) |
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APPLICATION |
PART NUMBER |
TOYOTA 86 |
P/N 431104 |
SCION FR-S |
SUBARU BRZ |
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Designed for Competition Use only |
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TEST RESULTS WHEN FITTED WITH A TOMEI EXHAUST MANIFOLD |
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SPECIFICATIONS COMPARISON VS STOCK |
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EXHAUST MANIFOLD SIDE |
MUFFLER SIDE |
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MATERIAL
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PIPE DIAMETER (Φ)
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PIPE THICKNESS (mm)
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FLANGE THICKNESS (mm)
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WEIGHT (kg / lbs)
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STOCK
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-
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54.0
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1.5 |
10.0 |
2.0 / 4.4 |
TOMEI
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SUS304
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60.5
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1.5 |
11.0 |
1.5 / 3.3 |
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OTHER FEATURES |
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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. |
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Other exhaust related parts released together for the 86/FR-S/BRZ |
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EQUAL LENGTH EXHAUST MANIFOLD |
UNEQUAL LENGTH EXHAUST MANIFOLD |
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