Originally Posted by
fuzzy
Iirc they're an mot failure so they need to be replaceable for mot but is it worth doing for a power gain? I assume they're something that needs to be custom made and not an off the shelf kit?
Is demon tweets still good for custom intercooler or Where's a reasonable place these days? I'm not interested in top quality fabricators that take 12 months to sort you out though.....

Custom intercooler is a tough one, can you find something on Airtec site a bit like it? Maybe send a PM to Marc Kinsey (M K on here with the WRC Fiesta) as he made bits for me at home and is a welder at Airtec.
As poster above questions, if you de-cat it you need to consider a remap to take account of it (same really for the intercooler ideally) unless the car has enough allowance within closed loop.
Is this for the Merc? If so surely someone makes an upgrade cooler for it?