60/62 exhaust???

[BigRed87]

MAF sells a cat back exhaust system for like $225.

I have a dual outlet, but I do have a 350, it does run into one cat and one dynomax muffler with dual outlets, then into three inch angle cut tips that come out behind each tire.

 

[sourcemine]

Here's what we did on mine when I got it, since the oem was all rusted out..

removed the entire OEM system replaced the front end with the newly fabricated piece seen in the 4th picture, the o2 sensor things were cut off and saved to reinsall, along with the very top pieces that connect to the headers.

the piping as run back into the muffler, run properly, not like the weirdly run oem system and than it exits out past the rear wheel.

 

[yooper]

The problem I see with your exhaust is that the O2 sensors are both sensing the same exhaust flow, from all six cylinders. The ECU is designed to use each sensor for two separate groups of three different cylinders, and adjusts the injectors for each bank of three separately. With your setup it will send the same info to all six injectors and you're missing out on some fine tuning.