I'm redoing the exhaust on my 94 corolla (1.6L 4AFE for what it's worth) with stainless headers and a stainless catback system. All the stock sections are severely rusted together, so they will have to be cut apart for removal. The outlet pipe on most headers available for that car are 1.75". The inlet and outlet for new catalytic converters is around 2 inches. The piping for just about all the catback systems for that car is 2.5". These parts are supposed to be "direct bolt on", so I assume that the flanges will bolt up fine. I'm just concerned that the sections increasing in diameter without adapters could upset flow. I've never messed with exhaust, could someone shed some light on this for me?
I'm a member on tunemytoyota.com and i suggest you go there and make a profile for all your future modifications.
on your problem, i say take it to an exhaust shop and have them fab one up for you. welding is always better than clamps
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