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Air and Fuel› Superchargers, Turbochargers and Components

Go Fast Bits

GFB Deceptor Pro II Blow Off Valve - 20mm Inlet/20mm Outlet

$525.20 $472.68 Save $52.52

SKU: G004 T9520

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The GFB Deceptor Pro II takes the 'Respons' concept further by allowing electronic, on-the-fly adjustment of the BOV venting bias from inside the cabin. It features revised porting for optimized flow and venting bias, a compact design for most factory valve locations, and a direct bolt-on application for many vehicles. It also has a new bore finishing process for reliable operation. The Deceptor Pro II offers remote proportional venting bias/volume control, a sleek in-car BOV volume controller with a backlit dial, end point adjustment for maximum vent to atmosphere bias, a volume adjustment mechanism driven by a high-torque geared electric motor, and a durable, low-friction gear train supported by precision sealed ball-bearings. It's supplied with all necessary parts and wiring.
Show original supplier description

Part #: T9520

Control the sound of your BOV "ON-THE-FLY" Go on, admit it. There are times you wish you could have that signature turbo blow off sound, but you're not prepared to listen to it all the time. GFB's Deceptor Pro II delivers just what you need the ability to control how loud your BOV sound is, from the driver's seat.To top it off, if your car typically suffers issues such as backfiring and stalling when venting more than a certain percentage of air to atmosphere, the controller can easily be configured to limit the maximum venting ratio. This way, you can achieve a blow-off sound without having to put up with the issues.

Featuring our patented Venting Bias Adjustment System, coupled with remote electronic control, the Deceptor Pro II allows you to infinitely vary how much air is recirculated, and how much is vented to atmosphere.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandGo Fast Bits
Part NumberG004 T9520
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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