I would like some advice on what size down pipe and exhaust I should get. I have a '99 s70 GLT - low pressure turbo. I'm not going to the track, but hope to build a very fast street car. I expect to stick with the LPT because of quicker spooling, but could change the turbo if I don't get the power I want. - Thanks

 

Well i think OBX is the one you looking for, if you wanna go custom id go 3 all the way but will cost allot.

 

3" mandrel bent turboback system with a free flowing straight through desgin peformance muffler.