I went to a dragstrip, Bandimere specifically, and there was a Honda Civic that raced and had a lot of backfiring when it burned out and took off. I can hear it "backfire" every once in a while after accelerating and motor braking. However, there is no explosion out the back muffler like this:


Would the cat stop this explosion from coming out? I have a 89 Civic Si w/ 96 B18b1 swap and custom exhaust. Dc header, 2.25" piping, high flow cat, and Skunk2 muffler. No resonator.

 

lol. google 2-step or anti-lag.

 

That doesn't answer my question. I don't have a turbo so what does anti-lag have to do with anything? My question was essentially: Is the cat in my exhaust blocking the fire from leaving the exhaust system?

 

Lol. I'm going to let someone else take over on this one.

 

it won't normally flame if it has a cat on if you decat then you will get flames if thats what your after??