I have a 2000 Mazda Millenia 2.3l supercharged. My rear cat is plugged up and I was wondering if there is anyway I can bypass the cat or if there is a cheap place to buy one, the cheapest one Ive seen is $500 and I dont want to spend that much. I was wondering maybe the exhaust manfild off of a 2.5l millenia would work. I need a cheap solution, please help