Review on Walker 18899 SoundFX Muffler by Rick Marie

Great price for Revain and it turned pretty easily. I bought a Walker catalytic converter (55438), an intermediate pipe (56097) and a muffler (1899) and installed them all myself on my 2004 Sentra to use on the ramps. Removing the parts was more difficult than putting on the new ones, but both worked. I also fitted a new O2 sensor (Denso 234-4301) which fits easily. It was a bit unclear what spacers I needed, I used Walker 31334 and 31578. In the end everything worked out. I actually had to go to Ace Hardware and with some new screws to match the rusted ones, I took them off. After I installed all of that and reset the check engine light, it still caught fire. In the end, all I had to do was reset the mass air flow sensor, then everything was fine and the car drove through the emissions.