My 97 SS has a SLP dual dual exhaust system and its catalytic convertors are removed. During acceleretion between upshifts it is throwing flames through the exhaust pipes, what could be the reason for this?

 

Mine does the samething, it's normal.

 

Mine did the same thing it was running a little rich, after getting it tuning it it stopped doing it.

 

Mine does it. Ricers envy it.

 

Then I should tune it richer

 

Ya but they also envy stickers the size of Alabama and techno music....

 

Hey I like techno music.....

 

I've heard of people doing this just to get the flames to come out. Thoughy not on a later model car. My buddy actually rigged a system up that shoots atomized fuel through his exhaust with a spark plug in each pipe. When he runs it rich and hits the gas with the flamethrowers on he can get almost 20 feet of fire.

 

My car does this too. Removing the CAT causes the unburnt gas to ignite. I have the Loudmouth, and since it has a straight through cylinder type "muffler" nothing gets in the way of flames coming out. At high RPMs when you shift it pops really loud and 2 ***** of fire the size of almost basketballs come out. I have been stopped a few times and people told me how cool it was and a guy in a truck kept saying to do it again.

You are running a little rich but if you don't want to have that effect, then yes tune it to run leaner. I like mine just the way it is though!!