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USD 219.95 219.95 219.95
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ProParts SPEK Electronic Boost Gauge

Universal - 0-35 PSI | 2 1/16"
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FROM 219.95
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Spek instruments are all electric and microprocessor controlled. The Wide-Angle Dial design creates a 15% larger viewing are on a 2 1/16 gauge. This is accomplished by adding a shoulder at the faceplate to create a 60mm dial.  The faceplate illumination is programmable to one of seven colors to blend in with original manufacturer's gauges. A stepper motor is supplied for the accurate pointer readingof a 280-degree sweep and control of returning the pointer to zero when power is removed. Gauges are programmed through water resistant stainless steel sealed command keys located on the faceplate. No control boxes or hand-held remote control needed. Peak playback value can be retrieved, high and low alert levels set,and programmable output signal activated. Spek gauges come with a plug receptacle for connecting the sender wiring harnesses. This plug and play technology significantly decreases installation time. The Spek performance gauges are designed to improve monitoring, display and control of precision engines to meet customer expectations and surpass industry standards.

SPEK Boost Gauge with output module

The Spek Boost gauge is electric and microprocessor based. The patented Wide-Angle Dial design creates the largest viewing dial ever mounted on a 2 1/16 gauge. High intensity LED technology and light distribution is designed for day or night driving with programmable dimmer setting for both Day/Night. Seven color programmable faceplate illumination in Red, Blue, Green, Orange, Yellow, Purple or White. Both the dial and pointer brightness are individually adjustable to match factory OEM gauges. Brushless stepper motor for an accurate pointer reading of a 280 degree full sweep analog readout. Gauges are programmed through patented water resistant stainless steel sealed command keys located on the faceplate for demanding environments. No control boxes or hand-held remote control needed. Peak playback value can be retrieved. High and Low lighted alert levels can be set with programmable outputs signal to activate relays or communicate to other SPEK controllers. Spek gauges come with a plug receptacle for connecting the sender wiring harnesses. Self diagnostics software will flash display if the sensor signal is lost.



Peak playback displays highest Boost level

Plug and Play wire harness for easy installation

Brushless Stepper motor with full sweep 280 degree pointer.

Easy to read Analog pointer (No flashing and blinking digital displays.) 

Replaceable external MAP pressure sensor with temperature compensation.

7 color background setting with day and night background and pointer dimmer 

Programmable output to control relays or communicate to other Spek controllers.

Available in Smoked or Clear Lens, Chrome or Black Bezel with White, Silver or Black display

Fits standard 2 1/16 inch ProPods mounting Pods, Dash Pod or universal #81102 steering column mount.

Patented lighting delivers one of the largest and brightest displays ever assembled on a 2 1/6 inch gauge

Part # 14829 relay wire harness 10 foot #12 gauge wire water resistant relay 40 amp
Part# 14820 relay wire harness 10 foot #12 gauge wire non-water resistant 40 Amp

Part Number Key:

BCB - Black face Plate, Clear Lens, Black Bezel

BCC - Black face Plate, Clear Lens, Chrome Bezel

BSB - Black face Plate, Smoke Lens, Black Bezel

SCB - Silver face plate, Clear Lens, Black Bezel

SCC - Silver face Plate, Clear Lens, Chrome Bezel

WCB - White face Plate, Clear Lens, Black Bezel

WCC - White face Plate, Clear Lens, Chrome Bezel


Additional Information

Install Sheet

Product Options

30311 WCC #30311
30312 WCB #30312
30321 SCC #30321
30322 SCB #30322
30331 BCC #30331
30332 BCB #30332
30352 BSB #30352


  • Manufacturer Name ProParts
  • Shipping Weight 2.00 lb.
  • Shipping Length 5 in.
  • Shipping Width 5 in.
  • Shipping Height 5 in.
  • Fuel Type Diesel / Gas
  • Prop 65 WARNING: Cancer & Reproductive Harm -


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XDP continues to closely monitor the COVID-19 (Coronavirus) outbreak. As an integral part of the automotive supply chain, at this point all call centers and distribution centers remain fully operational to ensure we keep vital service components flowing to vehicles used in transport of goods and emergency response. To ensure the health of our employees, families, and customers, we have made the following procedural changes:

  • Effective 3/16 we have shifted Customer Service hours to 8:30 – 7:00pm EST. To ensure compliance with New Jersey’s recent curfew.
  • Effective 3/18 we have decided to temporarily close both of our retail stores in NJ and NV.
  • Our technical sales team remains available Mon-Fri 8:30am-9pm and Saturday 10:30am-7pm EST.
  • All employees have been encouraged to follow the CDC's recommendations at home and in the workplace.
The circumstances of this virus are fast moving, as such, we will continue to update you with any further operational adjustments as needed. As always, we value your business and appreciate your patience as we manage this situation together.