so i just got my downpipe put on this afternoon,3inches all the way and the cat is gone,the only thing from factory is the o2 sensor,but my car runs beautiful,it pulls much faster now,thanks guys for telling me to eliminate the cat,and its not that much louder,just a lil deeper,but you can a huge difference

 

Well thats good. Especially with the 16g on there, the extra breathing room is much more effective.

 

it was a custom downpipe a shop well known did it for me

 

Awesome!

 

so a down pipe is better then a cat back?

 

dude a downpipe is just the pipe that goes from ur turbo to your catilytic converter, then acat back is the exhaust that goes from the converter to the end of the car... since he took his cat off he replaced it withjust a straight piece of pipe called a test pipe... so he's got a downpipe, connected to a test pipe, connected to a cat-back... which i guess you could call a test-back? or a test-pipeback? i dunno lol... make sense?

 

Or 3 inch tbe basically.

 

Gstfat are you still running the stock smic w/ your setup?

 

yeah still running the stock injectors and stock smic and pipes,i raced a 90' integra on spray last night from a 60mph roll,and took by like 2 cars,it was pretty quick,but any ways my car is smoking alot more since the downpipe,and it smells like a barbecue,lol,my car isnt tuned yet,could this cause a problem to my car?

 

running rich could eventually lead to failure of o2 sensor i believe not sure what else. does it just spew a lil more smoke under boost? its not a huge cloud is it? just more fuel?