I got a hondata ecu setup for my car a couple of weeks ago and I have a question since I think you have to be obd1 to have hondata does that mean that I can now run a test pipe instead of the cat. And also what would be the best 2.5 inch header for my car I'm thinking about gettting an an-r one and ditching the piece of crap dc. It's the hondata s200 setup that I have thanks

 

yup you can run a testpipe