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TOMEI
Tomei EXPREME Ti TITANIUM MUFFLER for GVB/GVF C-D (4 Door Sedan) JDM
Tomei EXPREME Ti TITANIUM MUFFLER for GVB/GVF C-D (4 Door Sedan) JDM
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We are pleased to announce the renewed release of the EXPREME Ti Titanium Muffler Series for the GVB/GVF C-D (JDM) models.
While maintaining the same performance as the previous version, the layout has been redesigned to improve ground clearance.
MORE POWER, LESS WEIGHT, DRAMATICALLY CHANGE YOUR WRX/STI.
High quality production, for true competition use without compromise. Only the best Titanium grade materials are used. From the special racing layout design, made as straight as possible, to the high flow silencer. We have poured our knowledge into it all. When you see our EXPREME Ti system, you can then understand that ours is unrivaled.
PRODUCT INFO
| APPLICATION | P/N | NOTES | ||
|---|---|---|---|---|
| GR# (5Dr HB) |
GRB A-D/GRF B-D ※for JDM | 440015 | ※FOR OFF ROAD USE ONLY. | |
| GRF WRX STI 2008+/WRX 2011+ ※for USDM | 440017 | |||
| GV# (4Dr Sedan) |
GVB/GVF C-D ※for JDM | old part number 440016 , new part number 441013 | ||
| GVF WRX STI 2011+/WRX 2008+ ※for USDM | 440018 | |||
FEATURE / SPEC
KIT CONTENTS
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for JDM | for USDM |
|---|---|---|
|
|
SPEC
| TOMEI(GV) | STD (GV) | |
|---|---|---|
| MATERIAL | TITANIUM | IRON |
| MAIN PIPE DIAMETER | Φ80.0 | (GV)Φ60.5-42.7×2 |
| MAIN PIPE THICKNESS | 1mm | 1.5mm |
| SILENCER DIAMETER | Φ152 | – |
| SILENCER THICKNESS | 1mm | – |
| EXIT DIAMETER | Φ115 | Φ80×2 |
| EXIT THICKNESS | 1mm | 8mm 2 HEAVY PIPES |
| FLANGE THICKNESS | JDM:2.0mm/USDM:8.0mm | 2.0mm |
| WEIGHT | JDM:7.0kg/USDM:7.2kg | 23.0kg |
| JDM : 16kg USDM : 15.8kg DROP! | ||
DATA

| WRX ‘08-’14/STI ’11-’14 (4Dr) EJ25 TESTED @ 4800rpm | WRX‘11-’14/STI ’08-’14 (5Dr) EJ25 TESTED @ 4650rpm | |
|---|---|---|
| EXHAUST NOISE TEST |
Without Inner Silencer:105db With Inner Silencer:96db |
Without Inner Silencer:99db With Inner Silencer:95db |
LAYOUT
RACING LAYOUT
When aiming for true performance efficiency, we had chosen to design the exhaust with the least amount of bends as possible. Just like the true purpose built race cars, in a racing layout design, yet to still comply with the stock body design so it can be fitted to any street used vehicles.A : MAIN SILENCER/ TAIL END
Compared with the stock design, our design is single piping all the way for max weight reduction. We have also focused on the design of the muffler to produce the best exhaust sound without compromising performance.B : MAIN PIPE
The pipe diameter was chosen for optimum exhaust flow efficiency. For performance use in mind and weigh reduction. Thus the slide joints was made instead of using the conventional flange and gasket design.C : SUB SILENCER
This sub silencer was designed with a simple structure and minimal size to reduce unwanted noise. Without hindering exhaust gas flow.SECTION PIPE ASSEMBLY
STYLE



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