Review on 💨 ATP Automotive Graywerks 101122 Exhaust Manifold/Catalytic Converter: Efficient Exhaust System Upgrade by Jason Paredes

I have a 1998 Honda Civic Lx. The old manifold had a crack and I had a P0420 CEL code. After a long search for the best replacement manifold, I decided on ATP. Installation turned out to be very easy. Everything fitted perfectly, and since it's a little thinner than the stock header, it was even a little easier to install. There were only screws for attaching the exhaust pipe. Motor mounting bolts are not supplied so keep the old ones. The hardest part was getting the old O2 sensors out. I couldn't remove the secondary oxygen sensor so I bought a new Denso oxygen sensor. Durability: I just installed it a week ago. So at the moment I have no idea. But I plan to update my experience with this distributor. The only negative: I was expecting my engine to be quieter and smoother. But I didn't feel the difference. My guess is that the noise is related to the engine and not the old manifold. UPDATE: After 2 months and 1500 miles still no problem, no check engine light. UPDATE: Still no CEL bulb after 6 months, no problem!