Will Borla headers, hi-flow cats, and TD exhaust shoot out flames? Or would I need the test pipes. I do not really care about the flames just curious. I know that test pipes are basically straight through with nothing inside which will give a lot more flow. But, how much more flow than HFC's which will pass emissions? Just weighing out the pros and cons I guess. Test pipes are a little less expensive too I see. In addition, are test pipes a lot louder than HFS's? Man decisions...decisions lol.

 

i dont think so...
cats should prevent such things from happening...
so will that barrell style exhaust...
it has to be pretty straight inorder to shoot out flames
~~~

 

It would be best to run headers and nothing else. Also drop your air:fuel ratio to about 11.7:1. See how that works out.

 

My Nismo exhaust shoots flames when I removed my cats. It doesn't shoot out big flames but it does shoot them out.

 

Gutted Cats with the Y pipe i shoot flames once in a while.

 

just need to get the cats off and get a free flow exhaust
=)