question i was talking to a friend of mine today, he was saying that i need a downpipe if i want to get any power, i should get one, i said i have straight 3 inch pipeing plus a 3 inch test pipe would their still be any need for a downpipe? thanks for any info

 

You'll get more power in turbocharged motors if you open up the exhaust even more.

 

IMO, a 3" dp to stock exhaust will yield more power than a stock DP to 3" cat back.

 

true, it's where your exhaust initially gets released.

 

Interesting, why is that?

 

add the downpipe bro.

 

IMO, a 3" dp to stock exhaust will yield more power than a stock DP to 3" cat back - in theory yes, but if you look at dyno comparisons, its not the case

 

innnteresting. I have no actual proof of my philosophy, it just seems to make more sense in my head

 

just go 3" all the way back, prob solved

 

well im saying, all stock piping was removed, i had a HKS muffler installed, along with a ultimateracing test pipe, that was 3 inch and obcourse the 3 inch piping going from the from the test pipe to the muffler. so you guys still figure there is a need for a down pipe?

 

it will literally be a different car (in a good way) with the addition of a 2.75-3 inch downpipe

 

Definitely .. You'll have a full 3 inch TBE ..

 

if i do purchase a 3 inch test pipe, would that mean the test pipe would have to be removed?

 

because i would like to stay with another HKS product but theirdown pipe is omly 2.75 i would prefer a 3 inch, and authority just so happens to make it for damn cheap. does anyone have their downpipe? and did you feel the gains?