Altering ECU for A4 1.9TDi

Hi Folks,
I recently bought a September '95 A4 1.9TDi and wish to get a few more HP out of it using either a replacement ECU or some other gizmo that
can be slotted inbetween the engine and the ECU.
After some hunting on the web I found www.mrhoot.com which seemed cheaper than some other tuning sites I found. However, I couldn't find any mention of Mr Hoot on google groups. Has anybody here used them?
Quite frankly I'm out of my depth. Has anyone got any advice of what's good, what pitfalls there are, products to avoid? My budget would be 200 - 250 pounds.
Thanks.
Dave
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Try http://www.upsolute.com/eng/index.html

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.