knock link
 

Where can I get a knock link from? How much should I pay and are they simple to fit?

Or where is best to get a 100RON ecu mapped to run 98RON and again how much should I pay?

Thanks

Knocklink is available from HERE, scroll about 1/3 of the way down screen ;)

Cheers

What model/year impreza do you own. Makes a difference when looking for a remap. You can get a apexi power fc fitted and mapped for around 800 pounds I believe.

It's a 98 v5 sti type r.

Give bob a ring at brd developments, he'll sort you out a knocklink and a remap for maximum safety and power gains. He did wonders for my my99 uk turbo, now producing 284bhp/296lbft. I would highly recommend getting a 3 port boost solenoid on the day as well, as I didn't bother first time round, and had to have a remap by bob at a later date when the 3 port was fitted (free as well :))
chris.