GFB T9025 User Manual

Respons TMS Valve

Installation Instructions

Part # T9025

P.O. Box 1017 Riverwood NSW 2210

Ph: [phone] Fax: [phone]

Website: www.gfb.com.au Email: [e-mail]

Installation Instructions for GFB Respons (part # T9025)

T9025 is designed as a direct replacement for plastic Bosch-style 25mm diverter valves.

PLEASE NOTE!

In most cases, the GFB Respons MUST be
installed in the opposite orientation to a
Bosch diverter valve.

Bosch valves are typically factory installed so
that boost pressure enters the side of the valve,
and dumps through the base. The GFB
Respons should be oriented so that boost enters
the base, and dumps through the sides. THE

RESPONS WILL NOT OPERATE
CORRECTLY IF INSTALLED IN THE
INCORRECT ORIENTATION.

For typical Bosch diverter valve replacements (image
shows a VW Golf GTi):

1. Remove any factory-fitted engine covers, and locate the

factory diverter valve. Take note of the orientation and
trace the hoses that connect to it. The bottom of the Bosch
valve is typically connected to a hose or fitting that vents
air into the turbo’s intake, whilst the side of the valve is
connected to the intercooler piping where it receives boost
pressure (see picture). If this is the case, the GFB Respons
must be installed in the reverse orientation.

2. Some cars have crimp-type hose fittings on the diverter

valve (can be seen on the vacuum hose in the picture above), which cannot be re-used once removed.
If your car has these clamps, make sure you have suitable replacements on hand for the installation.

3. Remove the 2 large and one small hose clamps from the factory diverter valve, then pull the valve free

from the hoses.

4. Check the location of the small vacuum hose that attaches to the top of the diverter valve. Take note of

the orientation of the vacuum nipple on the GFB Respons to determine if it points in the right
direction. If not, the Respons cap can be removed and re-fitted in any one of 4 positions for a better fit.

5. Fit the Respons into the factory hoses in the correct orientation, and tighten the hose clamps.

This product is intended for racing use only, and it is the owner’s responsibility to be aware of the legalities of fitting this product in his
or her state/territory regarding noise, emissions and vehicle modifications.

GFB products are engineered for best performance, however incorrect use or modification of factory systems may cause damage to or
reduce the longevity of the engine/drive-train components.

GFB recommends that only qualified motor engineers fit this product. Warranty is for the period of one year from the date of
purchase and is limited only to the repair or replacement of GFB products provided they are used as intended and in accordance with
all appropriate warnings and limitations. No other warranty is expressed or implied.