I know lots of people put down pipes on turbo cars is that a good idea. I already have a greddy catback.

 

... Our cars have integrated downpipes into the exhaust, it would be a good idea to get a TEST PIPE. Reason being, our Catalytic Converters are right off the back of the turbocharger, this creates back pressure right off the back of the Turbine, which is a VERY bad thing. With turbocharged setups, you want the least back pressure possible after the turbocharger.

However, you'll have to use one of two methods to get the Secondary Oxygen Sensor to not throw a CEL (Check Engine Light). Neither of these methods are very hard.

Do a search for Test Pipe, and you'll find what you're looking for.

 

I have a testpipe. If you run a testpipe with REVO software you won't get a cel.

 

alright so what are good test pipes (brand) also what is a revo? how much HP can you get out of a test pipe?

 

atp

 

you'll love a testpipe, and you take 2 spark plug nonfoulers and drill one out to a half inch, watch the threads, take the second and put it on the drilled out one...stick that bastard into the testpipe and attach o2 sensor...oh, and they are part number 42002 @ autozone. and getting a downpipe you will have to have some custom exhaust work done brah.