Blow Off Valve for Renault Megane RS 280 & 300 Mk4
SKU: 47802232888

Blow Off Valve for Renault Megane RS 280 & 300 Mk4

Sale price$100.31 Regular price$111.45
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

Blow Off Valve for Renault Megane RS 280 & 300 Mk4We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner This Blow Off, or dump valve, is for the Renault and Nissan Turbo engines that have the electronically controlled bypass valve (OEM Part no. 144839204R). It is recommended for any vehicle where the boost pressure has been increased by an ECU software upgrade and for unmodified vehicles operating in warmer climates, as a solution to the many failures that have

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner

This Blow Off, or dump valve, is for the Renault and Nissan Turbo engines that have the electronically controlled bypass valve (OEM Part no. 144839204R). It is recommended for any vehicle where the boost pressure has been increased by an ECU software upgrade and for unmodified vehicles operating in warmer climates, as a solution to the many failures that have occurred. Unfortunately, the failure doesn’t always result in a check engine light as the valve can still be blown open by the boost pressure, so you may not be aware that you are losing power due to this. This prevents the diaphragm from sealing.

Our alternative is a fully engineered solution offering both significantly improved reliability. The Forge valve is piston based, there is no diaphragm to fail, and of all aluminium billet construction, it replaces the original unit with a pressure/vacuum operated piston valve that still also retains the desirable OEM ECU control, over valve actuation.

In The Box:
1 x FMDV23A Valve
1 x 2000mm of 4mm Vacuum Tube
1 x 50mm of 10mm Vacuum Tube
1 x 3 port Solenoid and fixings
13 x Cable Ties
1 x Uprated Red Spring
1 x 10-6-10 T Piece
1 x Forge USB Instructions
1 x Forge Keyring and Sticker

If you wish to tune this product to fit the needs of your engine, please see the spring tuning kit below.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 47802232888

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Jennifer
West Palm Beach, US
★★★★★ 4
Great watch
Color: Gray/Digital/Gray
Great everyday watch—lightweight, easy to read, and does everything I need without being complicated.
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Reviewed in the United States on April 7, 2026
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Regina L. Oldaker
Dallas, US
★★★★★ 5
Very nice watch.
Color: Black/Digital/Black/Yellow
Very nice watch.
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Reviewed in the United States on May 3, 2026
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Ellen and Stephen
Belleville, US
★★★★★ 5
Great Multi-Function Watch
Color: Gray/Digital/Gray
I absolutely love my Timex Ironman watches. I have had many over a very long period of time. Wonderful set of functions for the price. Very affordable. Easy to use. Lasts a long time. Very easy to read in standard lighting. I like the Indiglo when needed, but do not use it too often. Absolutely love the ability to set a repeat timer to remind me to do something at a fixed interval, or to keep me on task for a fixed period of time. Great to be able to set three independent alarms. Potential to capture a huge number of splits with the stopwatch. I purchased this watch to replace a similar model with a dead battery. I have replaced batteries in the past, but it is quicker and easier to buy a replacement watch. I am saving my old watches for that day in the future when the Ironman model may no longer be available. I expect this will be my watch of choice for the rest of my life.
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Reviewed in the United States on May 21, 2026
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E-Dub
West Palm Beach, US
★★★★★ 5
Just fine if you have simple needs...
Color: Black/Digital/Black/Green
Exactly what I needed: a cheap, durable wrist watch. The only thing it was lacking were instructions, but about 5 minutes of messing with the buttons got it set up
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Reviewed in the United States on May 19, 2026
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S S.
San Leandro, US
★★★★★ 5
Nice watch
Color: Black/Digital/Black/Green
Good watch
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Reviewed in the United States on April 30, 2026

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