25mm Supersonic Blow Off Dump Valve

ATMOSPHERIC ACTION!

Be wary of the cheap imitations flooding the market if you value your turbocharger!


Made from billet aluminium, this SuperSonic diverter valve  vents some to the atmospshere to create the desired *woosh* sound.. This increases both quicker throttle response and higher clamping load to maintain boost pressure more reliably and turns heads! IT also allows adjustability to the preload, to set it up to work in harmony with your driving style and engine.

Our 25mm Supersonic valves will fit all Audi, VW, SEAT, Porsche and Skoda (VAG) 1.8T and 2.7 Bi-Turbo engines, as well as numerous other vehicles requiring a 25mm fitment. Please see compatible vehicles above and below, or contact us if you are not sure if this valve is suitable for your application.

These are our original design and build and not a spurious copy found being sold by Chinese Drop Shippers.

Remember - fitting an atmospheric unit to your vehicle is diverting from standard. Please do your research and be sure you wish to fit an atmospheric valve before purchase.

Features

- All aluminium construction, 25mm ports
- Direct OEM replacement
- Complete with blanking cap for the recirculation pipe
- Fully serviceable
- Top twist adjustable for pre-load
- Replacement for standard plastic Bosch diverter unit
- Boxed and brand new

All items are to be fitted by a professional and no instructions are included for this reason. 


Fitment List

All 25mm fitments, for example all VW Audi 1.8T 20v and 2.7TBi -Turbo Engines

Complete with blanking plug for the disused recirculation pipe

Others include

  • Ford
    • Escort Cosworth
    •  
    • Sierra Cosworth
    •  
    • Escort RS Turbo
    •  
    • Fiesta RS Turbo
    •  
    • Focus RS Mk1
  •  
  • Volkswagen
    • Beetle 1.8T
    •  
    • Golf MK4 1.8T
    •  
    • Passat 1.8T
    •  
    • Polo 1.8T
  • Audi
    • A3 1.8T
    •  
    • S3 1.8T (8L Chassis)
    •  
    • A4 1.8T (B5,B6 Models)
    •  
    • S4 2.7 V6
    •  
    • RS4 (B5) V6
    •  
    • A6 1.8T (B5,B6 Models)
    •  
    • A6 Allroad 2.7Bi-Turbo
    •  
    • RS6
    • TT MK1 98-06
  • Seat
    • Ibiza MK3 Petrol
    •  
    • Ibiza MK4 Petrol
    •  
    • Leon Cupra 1.8T
    •  
    • Leon Cupra R 1.8T
  •  
  • Saab
    • 900
    •  
    • 9000
  •  
  • Skoda
    • Octavia 1.8T
  • Renault
    • 5 GT Turbo
    •  
    • Clio 172/182
  •  
  • Lancia
    • Delta Turbo




Spooled Up are an independent online retail of performance vehicle products. 
Everything we sell is tested by ourselves, and each item is checked before dispatch.
Buy with confidence, from petrol heads to petrol heads.


Terms of Sale

Delivery

All sales are processed within one working day. Same day cut off is around 11am. Delivery time stated on your checkout is as stated, an estimate, your item may come before or after this date.

‘Free Post’ – Royal Mail 2nd Class Standard, this is a 3-5 day service, but must allow up to fourteen for delivery.

Next Day Option (additional cost at checkout) – Royal Mail Special Delivery before 1pm.

We sometimes also use DHL, UPS and DPD for larger items or when Royal Mail have failed collections or strike action.

International Orders – Standard Post (signed for) or courier.

As with all postal companies, there can be occasional delays and losses , please contact us if your parcel has not arrived a couple of days after the estimated delivery date.

Internet sales only, no collections.


Payment

Payment by PayPal only. Other methods can be arranged if you do not want to use PayPal - Please contact us to discuss options.


Returns

Please contact us directly to arrange an Return RMA number – We do not use the eBay Managed Returns system, and using this will cause a delay in processing.

As per Consumer Contract Regulations 2013, you have up to fourteen days to cancel an order and return the product for a refund, which you bare the cost of the return. The refund is only applicable if the item is returned completely unused, in ALL its original packaging and arrives undamaged ready for resale. Damaged items caused in transit of the return package is the customers responsibility therefore please ensure you return it using a fully tracked and insured method.

We don't accept returns for items that have been fitted or used. We meticulously list a fitment guide on each item, so we know what the item is listed for, it fits. Purchasing items to 'try' on other vehicles not in the fitment list will result in a denied return claim. 

All items are professional fitment only, and no warranty is implied for parts fitted ‘at home’. We do not accept claims of a professional status unless the item was shipped directly to a mechanical commercial premises. We will require an engineers/specialists report if you are claiming for an item not fitting the vehicle it is listed for (we test all our products, we know what they fit and what they don't). Under no circumstances do we offer ‘Partial Refunds’. Items deemed as faulty (after you help us diagnose the problem through messages and with your installer) are returned for a replacement. Any demands of refunds or replacements will be reported to eBay under their feedback extortion policy. For items returned under false premise, or where a refund has been made and the item returned damaged, used or  trial fitted we will seek financial compensation and will engage with a third party collection agency to recover any financial losses we have been subjected to by criminal actions (for example returning an item under the wrong reason code causing financial loss to ourselves).


If you have any questions or need some advice, drop us an email, we will be happy to help!