Jump to content
The mkiv Supra Owners Club

TB Developments Front Speaker Conversion Plates and Vent Blanking Plates


Recommended Posts

This new product is designed to work along side the Conversion Plates running in the thread below



Its been brought to my attention and after a bit of testing I found that if you block the vent in the OEM boxes you get a much more punchy bass and richer sound. So I've designed these from 7mm 316 Stainless Steel engraved with our company badge. Simple Push Fit although a bead of silicone for best air tight results.


£25.00 (International Welcome)


Special offer of £45.00 when purchased Conversion Rings along with the Blanking Plates







now added to the store



Post up if there is any interest :)



TB Developments

Link to comment
Share on other sites

  • Replies 86
  • Created
  • Last Reply

Top Posters In This Topic

Guest shauny46

I'd love a set of both please mate. Been look for a way to fit my new speakers :)


Let me know where to send payment



Link to comment
Share on other sites

  • 2 weeks later...
  • 1 month later...
  • 1 month later...

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.