Best Modifications / aftermarket?

[Keaney]

So as someone said the aftermarket world is a big big place!

I'm new the Transporter world and no doubt theres some great stuff out there so wonder what everyones best aftermarket purchase / modification is to their vehicle?

Anything goes, cheapest / expensive, OEM etc

 

[JonnyT6]

Bump

 

[B19DRG]

B14 bilstein Coilovers without doubt the best mod I have done to my van , that and soundproof and insulation