great stuff mate and no we dont have pre-cats just pre-cat O2 sensors so thanks for clearing that up for me

 

I'm thinking about the cheapo downpipes on ebay, they are catless, and very cheap comparison wise. I'm going to weld in some flex pipe as they look like they might crack. Leave the resonators and cut out the mufflers. If it's too loud I'll put a muffler back in or put on the borla again. And even cheaper than piggies, not for those who drive the cars everyday though.