Tomei Expreme TWIN Scroll Equal Length Exhaust Manifold Kit for Subaru Impreza WRX/STI EJ20 JDM ONLY

EXHAUST MANIFOLD KIT EXPREME EJ TWIN SCROLL WRX/STI EQUAL LENGTH with TITAN EXHAUST BANDAGE

THE Φ42.7 - 45.0 MODEL

FOR HIGH POWER TUNED CARS.

With many exhaust manifolds released so far, we've always designed our headers with Performance, Reliability and quality aspects in mind. Now we have a new model that is compatible with GDB, GRB and GVB. Introducing the highly acclaimed EJ twin scroll EXPREME header. With the very best of the TOMEI exhaust technology, this new design will deliver balanced optimised performance for power, torque and feeling.

APPLICATION

SUBARU IMPREZA WRX STI GDB C-G/GRB A-D/GVB C-D

Note: Does NOT fit EJ25 or EJ20 Single Scroll Models, Typically found in the UK, USA & EDM.

Sensational Response!

More Power at High RPM.

Weight Reduction.

Dry Racing Sound

Durable

Equal Length Design

IN THE BOX

EXHAUST MANIFOLD　（1）

SUPPORT PIPE　（1）

E/G - EXH. - SUPPORT PIPE GASKET　（3）

TURBINE - FRONT PIPE GASKET　（1）

SUPPORT PIPE - TURBINE GASKET　（1）

CAP BOLT M10*L=*P=1.5　（3）

FLAT WASHER M10　（3）

FLANGE NUT M10*P=1.5　（3）

STUD BOLT M10*P=1.25　（5）

BOLT SMOOTH PASTE　（1）

BANDAGE BAND 　（10）

TITAN EXHAUST BANDAGE　（1）

BOLT SMOOTH PASTE　（1）

TITAN EXHAUST BANDAGE

The kit comes with a 50mm wide x 20m long Thermal Bandage.

DUAL SUPPORT PIPE

The kit also includes a Φ45.0mm (1.8"), SUS304 material support pipe.

Material SUS304

Flange Thickness 8.0mm

Layout 4-2-2

Port Exit Collector 42.7

Collector Support Pipe 45.0

Support Pipe 45.0

Pipe Thickness 2.0mm

Weight 9.7kg

MAIN PIPE

Φ42.7

The 42.7mm pipe diameter was chosen from the exhaust port to the collector to retain the stock like response.

COLLECTOR

Φ45.0

A thicker than normal pipe was chosen to increase durability to handle high horsepower & high boost applications.

TURBO SUPPORT PIPE

Φ45.0

Guides the exhaust gases more efficiently to maximize the Turbos performance potential.

LEFT BANK

Top priority was given to this section, to be as close to straight as possible.

RIGHT BANK

A larger radial bend to the merging section was decided to minimize heat saturation to the oil sump.

MERGE SECTION

The acute angles allows a smooth extraction of gas flow from each bank.

VIP Motorsport is an official stockist of Tomei Exhausts & Products in the UK & Europe. Our stock is directly linked with Tomei USA, if the item is out of stock with us it could take up to two working weeks to be received.