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You are here: Showoff » Performance » Turbo Related » Blowoff Valves » Universal 20mm Inlet / 20mm Outlet Deceptor Pro TMS [GFB]

 Universal 20mm Inlet / 20mm Outlet Deceptor Pro TMS [GFB] - #217987
Universal 20mm Inlet / 20mm Outlet Deceptor Pro TMS [GFB]
Go Fast Bits Product Code: T9520

Universal 20mm Inlet / 20mm Outlet Deceptor Pro TMS [GFB]

In-car volume-adjustable blow-off valve!
A WORLD FIRST in blow-off valve technology, the Deceptor Pro is based on the patented volume adjustable Stealth FX blow-off valve, but advances the design even further, featuring an industry world first: electronic proportional in-car adjustment of blow-off valve volume! It is no longer needed to cruise the street with a permanently noisy blow-off valve; The Deceptor Pro lets you choose when and where you are noticed!

New TMS Turbo Management System: Don't throw your BOOST away but INCREASE IT BY up to 40%. GFB's Turbo Management System (TMS) parts offer multiple performance benefits over factory diverter valves. We looked at the concept named ‘blowoff valve’ and took this to a whole new level!

The benefits:
• MORE POWER - Ours Holds Boost, Can Yours? Factory diverter/blowoff valves are commonly known to leak or fail, especially with age or higher boost levels. A GFB TMS will hold as much boost as you can throw at it, 24/7 - No frequent re-builds or replacement required.
• BETTER RESPONSE Through reduced turbo lag - The GFB TMS is designed specifically to minimize lag - tests show that it can return the engine to peak boost up to 30% faster than a factory diverter when shifting gears, while delivering up to 40% more transitional boost.
• BETTER DRIVEABILITY - Smoother than stock. Factory diverters tend to operate fully open or fully shut. This can cause annoying surging at freeway speeds, requiring constant throttle corrections to hold steady speed. The GFB TMS completely eliminates this problem, making the car smoother to drive.
• GET THE SOUND - OR NOT - It's your choice! Want noise? GFB patented Respons succeeds where others have failed! By adjusting the venting ratio of atmosphere/recirculation, you CAN achieve a sound WITHOUT throwing a CEL (Fault code in ECU), running rich, stalling using more fuel or causing other problems commonly associated with atmospheric-venting valves.

What makes the DECEPTOR PRO TMS a better Blowoff Valve?
• Remote in car control, proportional volume control; from silent to loud, or anywhere in between
• Modern, compact in-car BOV volume controller with backlit dial
• Volume adjustment mechanism driven by a high-torque geared electric motor
• Durable, low-friction gear train supported by precision sealed ball-bearings
• Supplied with all parts necessary to have it up and running quickly and easily
The Deceptor Pro also includes trademark GFB design features:
• Ertalyte™ piston ring – maintains the integrity of the vacuum signal
• Acetal™ piston seat – positive seal under boost, and a maintenance-free long life
• Lightweight piston, for fast valve response
• 360º rotating vacuum nipple – for neat installations
• Low profile, user friendly spring adjustment mechanism – no tools required

This kit is a universal set, fits almost any car with a turbo (no diesel of course!) The inlet and outlet adapters are available in different sizes for different hoses. If you doubt about fitment on your car just send us an email and we give you the correct advise.
For some cars (like S14, Impreza, WRX, R33, R34, EVO, Soarer, Forester) we have special 'made to fit' kits online and you better choose those. For all other cars this universal kit is a very good option!

This blowoff valve can be changed with several accessoiries. This is all optional, if you order the blowoff valve it already includes a set of inlet/outlet adapters etc. You can change inlet size, outlet size and springs/trumpet:
• Inlet:
218025 - Respons/Deceptor Pro Hose Adaptor Base 20mm
218026 - Respons/Deceptor Pro Hose Adaptor Base 25mm
218027 - Respons/Deceptor Pro Hose Adaptor Base 30mm
218028 - Respons/Deceptor Pro Hose Adaptor Base 33mm
218029 - Respons/Deceptor Pro Hose Adaptor Base 35mm
218030 - Respons/Deceptor Pro Pipe Mount Base 38mm
• Outlet (recirc):
218021 - Mach1/Respons/Deceptor Recirc Hose Outlet Adaptor 20mm
218022 - Mach1/Respons/Deceptor Recirc Hose Outlet Adaptor 25mm
218023 - Mach1/Respons/Deceptor Recirc Hose Outlet Adaptor 30mm
218024 - Mach1/Respons/Deceptor Recirc Hose Outlet Adaptor 33mm
• Trumpets/Springs/Plugs etc:
218035 - Mild Steel Weld-on Adaptor 1 Inch
218042 - Screw-in Plug Blocks Off Recirc Or Atmospheric Outlet
218045 - Soft Replacement Spring
218037 - Stainless Steel Weld-on Adaptor 1 Inch
218039 - Stainless Steel Weld-on Adaptor 38mm/1.5 Inch
218044 - Standard Replacement Spring
218043 - Standard Replacement Trumpet
218031 - Universal Hose Plug 20mm [GFB] - € 8,00
218032 - Universal Hose Plug 25mm [GFB] - € 8,00
218033 - Universal Hose Plug 30mm [GFB] - € 8,00
218034 - Universal Hose Plug 33mm [GFB] - € 8,00
218040 - Respons/Deceptor Pro Whistling Trumpet Over 12Psi
You can order these adaptors on our website.

More information on how a blowoff valve works can be found here:

Basic installation instructions can be found here:

Youtube video about the TMS valves:

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Go Fast Bits
Go Fast Bits -
Go Fast Bits started back in 1997 designing, testing and developing GO FAST BITS. Today a wide range of innovative and high-quality blow-off valves, boost controllers, pulley kits and short shifters are available. All meticulously designed and manufactured from the highest grade materials. GO FAST BITS products are manufactured in Australia and GFB is constantly developing new and innovative products!

Showoff Imports is the official distributor for GFB parts for the Netherlands and Belgium. Currently we stock all popular products, so no waiting times! Dealers inquiries welcomed.

What makes GFB blowoff valves different and better?
Our new TMS Turbo Management System don't throw your BOOST away but INCREASES IT BY up to 40%. GFB's Turbo Management System (TMS) parts offer multiple performance benefits over factory diverter valves. We looked at the concept named ‘blowoff valve’ and took this to a whole new level! Basically the main benefits are:

How to choose a BOV
With the vast range of GFB blow-off valves, questions rise 'Which blow-off valve is the best?' and 'Which blow-off valve should I use?'
The first question is easy to answer: There isn't actually a 'best' in terms of quality. All GFB blow-off valves use the same high-quality internal components. So, provided the right BOV is fitted for your particular vehicle, they all offer the same performance benefits of improved throttle response and reduced lag. The real question is: How do you select the valve for you?

The first step to decide on 'your' BOV, is whether or not you want to hear it, and if so, how much? The following chart lists the “noise ratings” of our blow-off valve range. The final decision will then be based on how much control you want over the blow-off volume level.

Boost Controllers
GFB boost controllers use a more consistent needle-valve bleed system, which brings boost on just as fast as any ball-and-spring system, and generally more quickly than a factory boost control system. On the productpages you can find a comparison of the GFB controller to other major brands, guess who wins this standoff? GFB!
A GFB boost controller will give you the added benefit of not only being able to adjust the peak boost level, but in most cases will bring the boost on earlier, resulting in more power throughout the rev range.

Pulley Kits
The reduction in rotating inertia (we've removed about 2kg by using 6061 T6 aluminum billet) means that the engine can accelerate much quicker during the times it is making very little power before the turbo spools up. The result is better drive ability off-boost and better acceleration, which is especially useful for those with large turbos that only make power in the upper rev range. The smaller size of the crank pulley under-drives the power robbing accessories so that the upper end of the rev range is less burdened, while still allowing them to operate properly.

Short Shift Kits
The GFB Short Shifter is the same height as the factory shifter, it is the actual distance that the gear stick moves between gears that reduced.
Very simple to install. All of the installation is done from inside the car, without having to jack it up and crawl around underneath. Only a few basic hand tools are required, and the necessary hex keys are supplied.
The maximum throw reduction varies for different models. Early WRXs had a particularly long throw, so the maximum reduction with the GFB kit is around 50%, whilst on later models it is closer to 40%. In either case, it is possible to reduce the distance per gate to about 30mm. Whilst it can go shorter, the shifting force becomes too great for comfort, and some of the shift feel is lost.

Download the GFB 2011 Catalog here:

Link to Youtube video about GFB in general:

Link to Youtube video showing a demo of the TMS Blowoff Valves on a GTR:

Youtube video about the benefits of TMS valves vs normal blowoff valves:

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Itemnumber 217987
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Manufacturer Code T9520
Estimated Delivery Time: 1-2 weeks.
Showoff Price: €399,00


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