Review on TOTALFLOW 20014 Straight Through Stainless by Matthew Riley

I used them to replace the factory catalytic converters. I removed them from my PCM to prevent the CEL from turning on and professionally tuned the entire system on the dyno. They really fit the bill perfectly and both ends are 3 inches in inner diameter. It's like a mini cherry bomb but with different packaging that doesn't break or rattle everywhere. Thumbs up. Excellent welds and a simple design make this an economical version of a highly paid competitor whose name you'll only pay a fortune for.