I have tried to search google and this forum for a definitive answer to my lambda issue. Does it have one or two? I am wanting to order this de cat pipe and they offer a welding or lose option where i fit it. But do i have one, therefore do i need one?
AUDI S3 & TT 1.8T QUATTRO DE-CAT PIPE from JOHN ASHLEY EXHAUSTS | eBay
Thats the ebay site, the business is John Ashley Exhausts. I have phoned him and he wasn't 100% sure.
Thanks for the help,