Warning

GFB recommends that only a qualified automotive technician fit this product.

Adjustment and/or tuning is required when installing this product, as it will result in higher boost pressure which could damage your engine if the ECU is not tuned to suit. GFB makes no recommendations regarding “safe” boost levels for your engine. This product is a tuning tool and maximum boost pressure should be determined by an expert, taking into account the capabilities and limitation of your specific engine and supporting modifications.

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.

Instructions

• 7003-instructions.pdf

Specific Product Information

What's Included

• 2 x hose barbs
• 1 x inlet clamp
• 1 x outlet clamp
• 1 x inlet weld-on
• 1 x inlet seat
• 1 x outlet weld-on

EX38 38mm Wastegate Features

• 38mm valve
• V-band inlet and outlet (directly compatible with TiAl MV-S flanges)
• 93mm overall height
• Supplied with 10psi (outer) spring
• Additional springs available are 5psi (inner) and 7psi (middle)
• Combine springs to achieve base boost pressure of 5, 7, 10, 12, 15, 17 and 22psi*

*Spring pressure rating is a guide only. Actual boost pressure achieved may be different depending on the turbo, exhaust manifold and engine combination.

Product Dimensions

Product Range Information

Features and Benefits

• Most compact wastegate range on the market
• Body, valve, seat and all mounting hardware is CNC machined fromhigh-temp stainless steel
• Actuator housing CNC machined from billet 6061-T6 aluminium
• Nomex-reinforced silicone diaphragm
• Internal shroud protects valve stem from excessiveheat and prevents carbon-related sticking
• V-band clamp mounting system

Use Cases

• Most aftermarket turbocharged vehicle applications.

Self-troubleshooting Steps

After installing your wastegate, I’ve found that I’m making 0 boost. What is happening?

• In most cases, it’s worth noting that it is almost impossible for a wastegate to be making 0 boost. A wastegate “seemingly” making 0 boost is not an indication that it is stuck open. In most cases, we’ve found that if you’re making 0psi worth of boost – your vehicle may be in some form of limp mode due to a possible CEL code. We would recommend using an OBD2 scanner to check for all CEL codes to see if there is an underlying code causing this limp mode to be triggered.

I think there is a genuine leak from the wastegate. What can I do?

• If you do believe that there is some abnormal behaviour from your wastegate, we would recommend performing a full service of the wastegate to better determine its condition.
• With the wastegate uninstalled from your vehicle, carefully undo the 6 screws holding the cap into position. It’s highly recommended that a press is used to prevent the cap from flying off and causing any potential damage as the cap is spring loaded.
• Once the cap and springs have been removed, carefully inspect the diaphragm to look for any abnormal wear such as discolouration or tears. If in the case you have noticed some abnormal wear, please feel free to contact us via the below link and to send us some photos of the diaphragm in question so that we’d be able to provide relevant information and feedback.

Tech Support and Warranty

We offer lifetime warranty on all of our products, so provided that there is a genuine manufacturing or assembly fault with your product – please send us some photos of what’s going on so that we’d be able to assist with either replacement parts or components. It’s also worth noting that we our lifetime warranty does not extend to those who have purchased our parts second hand.

Contact Us: https://gfb.com.au/contact-us/

If you are still having some trouble, then the next steps are to contact our Tech Support team. Videos, photos and a clear description of the symptoms you are experiencing would give us a better understanding of what is going on and how to resolve this issue as quickly as possible. Remember, we can’t see your car or product, so our diagnosis is only as good as the information you provide us.

Downloads & Installation

• 7003-instructions.pdf
• 7003.jpg
• 7003_web.jpg

Vehicle Applications