magnaflow 16601+custom downpipe= a good setup?

[braker15]

dont wanna run a testpipe so would a downpipe make it sound a little more agressive?

[onceover]

maybe a bit. go get a HFC

[braker15]

when i go k04 i get HFC(instead of stinky testpipe), but for now i just want a little crispier sound

[b6onboost]

just go HFC and downpipe all at once. if you plan to go K04, the HFC will bolt right up to either the K03 or K04. i wouldn't waste time/money/labor on having a downpipe added to the stock cat if you plan to replace it with a HFC in time.