Tomei Unequal Length Headers - Subaru BRZ & Toyota 86 12-21, 22+

The FA20 boxer engine inside the Toyota 86/Subaru BRZ can be said to be the successor to the EJ engine. At Tomei Powered, through our extensive testing, we've produced numerous EJ engine and exhaust parts. By applying our knowledge and experience of EJ engines to the ZN6/ZC6, we conducted even further tests to produce 2 new exhaust manifolds with different characteristics. Using this in conjunction with our new joint pipe, released at the same time, can yield even better results.

SPECIFICATIONS COMPARISON VS STOCK

Unequal length layout for improved torque characteristics.
Improved exhaust efficiency through catless design.
Designed to minimize heat transfer to the oil pan.

KIT CONTENTS:

EXHAUST MANIFOLD (1)
GASKET (ENGINE SIDE) (2)
GASKET (JOINT PIPE SIDE) (1)
EXHAUST REFLECTIVE HEAT SHEET (1)
FLANGE BOLT (2)
FLANGE NUT (2)
BOLT SMOOTH PASTE (1)
Includes all gaskets, nuts, bolts etc. required for installation.

Vehicle Fitment:

2012-2021 Subaru BRZ
2012-2021 Toyota 86

Specs:

	MATERIAL	LAYOUT	PIPE DIAMETER （Φ）			PIPE THICKNESS (mm)	FLANGE THICKNESS (mm)		WEIGHT (kg / lbs)
	MATERIAL	LAYOUT	Port exit - 1st juncture	Port exit - 1st juncture	2nd juncture - joint pipe	PIPE THICKNESS (mm)	Front	Rear	WEIGHT (kg / lbs)
STOCK	-	4-2-1	42.7	45.0	51.2	1.5	9.0	10.0	9.2 / 20.28
TOMEI EQUAL LENGTH	SUS304	4-2-1	42.7	45.0	60.5	1.5	12.5	12.5	6.45 / 14.22
TOMEI UNEQUAL LENGTH	SUS304	4-1	42.7	-	60.5	1.5	12.5	12.5	6.85 / 15.10