An exhausting topic

[Mandeep D]

So I had a chance to bond with the underside of the S4 last night. The gradually increasing exhaust leak I'd detected is not, as I had hoped, in the cat back. It's in one of the downpipes. On the top.

Good news: looks like a good excuse to finally turn them into piggie pipes (gutted pre-cats, frees up many hps, and nice sounds).

Bad news: no excuse to get a nice sounding cat-back.

I thought about buying a set of new aftermarket DP's, but they're $1300 and up Also, they arguably don't make more power, until you go to GT or Tial 650 turbos.

[Dreamstate]

Piggy pipes and resonator delete.
Economical and should sound good.