Seats - where to buy

[Detroiter]

I’m looking for some black sports seats with cut out for harnesses.

 

any recommendations where to look as I’m struggling to find narrow ones 

[11Budlite]

If you're not looking for the standard Caterham or Tillet offerings you could check out KitCarDirect: https://www.kitcardirect.co.uk/collections/caterham-seat

 

Are you looking for a padded seat or a CF/Fiberglass seat?

 

Just an FYI, I've been able to use the stock 2019 Caterham S3 seats with a 6-pt harness on track without any issue. You just run the crutch straps on top of the seat base and sit on them before buckling up.

[CBuff]

I have the leather seats in my 420. And just had a hole cut thru the squab.  It has worked well.  I thought I would only use on track but now I run crutch all the time. It keeps the buckle located and is perfectly comfortable. 
 

[Detroiter]

That looks awesome, I’m looking for something similar but for the top of the seat. Didn’t think a hole could be made nicely but definitely underestimated what’s possible. Did you find a local service for the work you got done?

[CBuff]

My importer up in buffalo found an upholsterer who did it. I can track down the name but don’t think it was a specialist.  I works well