MORE POWER, LESS WEIGHT,
DRAMATIC CHANGE FOR IMPREZA GDB
 
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.
 
GDB APPLIED C
 
GDB APPLIED G
 
COMPARISON TO STOCK
Designed for results, not too thick or thin. For best overall power gains, weight reductions and value for money.
TOMEI
STD
MATERIAL
TITANIUM

IRON

MAIN PIPE DIAMETER
Φ80
Φ60.5
MAIN PIPE THICKNESS
1mm

1.5ｍｍ

SILENCER DIAMETER
Φ152
MEASUREMENT N/A
SILENCER THICKNESS
1mm
MEASUREMENT N/A
EXIT
DIAMETER
Φ115
Φ100
EXIT THICKNESS
1mm
MEASUREMENT N/A
FLANGE THICKNESS
2mm

2.5mm

WEIGHT
5.1kg
15.5kg
10.4kg (22.93 lbs) WEIGHT DROP!
▲ STANDARD SUBARU MUFFLER
 
 
 RACING LAYOUT

In order to achieve the best performance possible from this product. We have designed the layout of this exhaust system to be as straight as possible. By minimising bends and the angle of the bends, we were able to maximise the exhaust gas flow efficiency.
 3 SECTION PIPE ASSEMBLY
The conventional style flange is not used to help reduce weight even further. The use of the springs and clamps eliminates the need for gaskets as well.
 
 HIGH DURABLE GLASS WOOL

The long fiber wool threads were adopted for the silencer. This type has proven to last longer than the traditional fiberglass materials even over a longer period of time with extensive high temperature exposure both at high and low pressures.
 HIGH QUALITY

Only the racing layout muffler design in full Titanium can produce the exhilarating race sound that is second to none.
 BEST VALUE & PERFORMANCE
The design targets were strictly for performance use and for the best value for money for our end users.
 
 KIT CONTENTS
MAIN PIPE A (1)
MAIN PIPE B (1)
SILENCER ASSY (1)
STD FRONT PIPE GASKET t=4 (1) * 1
STD FRONT PIPE FLANGE BOLT M8 L=35 (2) * 1
STD FRONT PIPE FLANGE NUT M8 (2) * 1
AFTERMARKET FRONT PIPE GASKET t=2 (1) * 1
AFTERMARKET FRONT PIPE FLANGE BOLT M10 L=35 (2) * 1
AFTERMARKET FRONT PIPE FLANGE NUT M10 (2) * 1
CLAMP BAND (2)
SPRING (4)
SILENCER BAND (1)
SILENCER BAND RUBBER (1)
FLANGE BOLT M8 L=25 (1)
FLANGE NUT M8 (1)
 
FLANGE BOLT M8 L=55 (2) * 2
FLANGE NUT M8 (2)* 2
SOUND REDUCER ver.2(1)
BOLT SMOOTH PASTE (1)
* 1 Excluded from the JDM kit.
* 2 Excluding from the USDM kit.
     
Additional bolt holes may be required when using the sound reducer ver.2 .
Click here for details.
GDB A/B/C/D
for JDM
Part No. TB6090-SB01A
 
GDB E/F/G
for JDM
Part No. TB6090-SB01B
 
WRX/ WRX STI 02-07
for USDM
Part No. TB6090-SB02A
 
MSRP $1,290.00 (USD)
* DESIGNED FOR OFF ROAD USE ONLY