Company: Forge Motorsport

Pierburg Boost Control Solenoid

Product code: FMTVSOL
£45.42 Inc. VAT £37.85 Exc. VAT (VAT will be added during the checkout process) Estimate Delivery

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Product Description

Installation of a boost solenoid is not for the tuning novice. Any boost controller manual or electronic must be fitted with caution.

The Pierburg boost Control Solenoid allows for total flexibility in controlling boost wear fine tuning is needed. Misuse or improper tuning of this product can destroy your engine! Boost controllers should be set up with either road mapping or on a car bike or engine dyno to ensure safe AFRS are meet once boost levels are set.
If you are not familiar in engine tuning and the operation of boost controllers DO NOT attempt the to fit this product for control of your turbos boost pressure. Please always ensure your engine builder or professional tuner check the fitting and use of this product. 

A boost controller is a device to control the boost level produced in the intake manifold of a turbocharged engine by affecting or changing the air pressure delivered to the mechanical wastegate actuator by bleeding of pressure before the actuator enabling your turbo to produce more boost. 

A boost controller can be a simple manual control which can be also purchased from us in either a under bonnet application or in car. These can be found in the related products below. 




This is an excellent upgrade from the 2-port device fitted to many turbo-charged vehicles. Made by Pierburg, it is a very high quality replacement 3 port N75 valve for the following OEM part numbers:


This boost solenoid may be used to replace the solenoids listed above, alternatively it may be included as part of the engine management computer in a factory turbocharged car, or an aftermarket electronic boost controller. 

In most cases the best way to control a boost solenoid is with standalone ECU management this way the boost control along with fuelling and engine timing can be be adjusted to ensure your engine performs at its best and safely. 

Even with an electronic controller, actuator springs that are too soft can cause the wastegate to open before desired. Exhaust gas backpressure is still pushing against the wastegate valve itself. This backpressure can overcome the spring pressure without the aid of the actuator at all. Electronic control may still enable control of boost to over double gauge pressure of the spring's rated pressure. 

If you wish to purchase the Pierburg Solenoid Wiring Connector on it's own, you can do so here.


As this is not a Forge manufactured part, it is excluded from our lifetime warranty  Forge Motorsport accept no liability for engine damage relating from this product due to incorrect fitting or misuse. 


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Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.

Product Reviews

Product Reviews from on Apr 12th 2020 Verified Purchase
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Compatible Vehicles

Click the triangles to find your car make and model. Note that the models listed here have either had the part fitted by us or a customer or they are listed as being compatible on industry parts databases. Where it has not been directly fitted by Forge there will then be a separate May Also Fit tab where the make and model will also appear and which details our no-risk approach to purchasing this product, so it is worth checking there as well.

If you need further assistance, please call us on +44 1452 380999 or email us.



Warranty Infomation

The majority of Forge Motorsport products come with a limited lifetime warranty (brakes pads excluded). All warranty claims must be accompanied by the original proof of purchase to enable us to help you. Failure to supply this proof will result in your claim or enquiry being denied.

For further information, please call our customer service team on +44(0)1452 380999 or email

Do not use aggressive (acidic) car cleaning products, particularly traffic film remover solutions or shampoos to clean your intercooler, radiator, or oil cooler. The use of these products can damage Forge Motorsport cooling systems and invalidate your warranty. These are often found at car washes. A light, warm, soapy solution (free of harsh acidic cleaning compounds) should be used to clean you cooler and thoroughly rinsed away. We recommend that you should inspect your product on a regular basis for bent and/or crushed fins. Any bent fins should be carefully straightened to allow ambient air to pass through the core face. At the time of installing your Forge radiator, an approved coolant must be used and added to the coolant system. Be sure you never mix coolant and always use distilled water.

This warranty does not apply to any defect in the goods arising from fair wear and tear, wilful damage, accident, negligence by you or any third party, use otherwise than as recommended by the supplier, failure to follow the supplier’s instructions, or any alteration or repair carried out without the supplier’s approval.



UK Mainland

Next day delivery applies to orders processed before 12 noon Monday to Friday, subject to stock availability and geographical restrictions. 'Next day' refers to next working day. We cannot guarantee next day delivery for orders placed after this time. Whilst we endeavour to honour our next day service, next day delivery cannot be guaranteed due to other extenuating circumstances. Full details

Delivery is free of charge for all orders £200 (ex VAT) or over. Products are sent by standard DPD service which is usually a next day service, but can take 2 days in transit. We reserve the right to ship smaller, lower value items via Royal Mail or any other service. (Not including Scottish Highlands, Scottish Isles, Northern Ireland, Guernsey, Jersey, and Isle of Man where charges will vary). 

Europe and Worldwide

Delivery service charges will vary depending on the quantity of product ordered, the related parcel size, and destination postcode. Live shipping rates will be calculated at checkout using ShippyPro and dependent on criteria, you will be given the option of DHL, DPD, or FedEx courier services.

Shipping into the EU - Duty Charge Information

All Forge products are sold with a Delivery Duty Unpaid (DDU) status and an import tariff may apply to your order. Customers will be contacted by the Customs and Excise authority in the destination country regarding payment prior to delivery, and it is important that correct contact telephone number and email information be submitted with the order to facilitate this part of the delivery process. Some couriers are charging an admin fee for shipping into the EU. 

If we detect at checkout that you are located within the European Union (EU), you are eligible for a contribution towards your import duty and tax payments. We can add an additional 20% on the total cost of your order, we will then pay the duty and tax costs above your contribution. This offer will ensure the price you pay at checkout is the total you pay, with no additional charges. It will also ensure you have the fastest possible delivery, with no delays. For more information, please see here

Our shipping methods ensure safe and timely delivery of your new Forge products. For further information on cost and delivery times, please contact Forge using the email address if you require any more information. We reserve the right to change the delivery service and company at any time.

Forge Motorsport ships via either UPS, FedEx, DHL (primarily for outside of UK), DPD (primarily for UK), or any other courier we chose. Other shipping options may be available for an additional fee over and above the actual shipping costs. Once a product has left our warehouse and is in the possession of the shipping company, any claims must be made directly with that shipper however we can assist with most cases.

FAQ's and other info can be found here.

Expert Answers

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Hi I need to replace my broken solenoid the part number is 1m50-9c728 aa It's for a forge blow off valve peugeot 208gti 2017

hello , this is compatible with the forge blow off valve.

Hi there, will this work on a 2004 Mk4 Golf 1.8T AUQ 180bhp engine?

Hi Brian,

thank you for your question

This is a universal l product. i would suggest looking at the oem part numbers we list in the description of the product then check your solenoid to see if the part numbers match :)

Hi there I drive a 2012 punto evo supersport and it’s thrown an engine code p1064 , which states my cars actuator isn’t opening and starving cylinder 4 and causing an over boost , I don’t know what part I need to purchase I believe it’s just the solenoid if I could be pointed in the right direction

hello, this solenoid may not be compatible.  

Will this fit 2010 st225?

Hello , you will need to cross reference your oem part number. 

Hello, can this part be used to replace the one that comes stock with abarth 500 tjet, to be used on td04 conversions? The stock plugs need to be changed? Best regards

hello , this will need to have a custom map to re calibrate your boost control.