[Supr3me]

So I've read through a lot of the exhaust threads here and honestly still don't have my primary question answered, so posting it here.

I've already done the primary cat delete but I'm looking for a more aggressive sound. My 340i was catless MPPSK so basically straightpiped. I'm not going for quite that loud, but louder.

I'm trying to decide between:
-secondary cat delete
-midpipe resonator delete
-RG Sport midpipe (which I believe deletes both)

Which would you go for and why?

(Also just want to confirm that the exhaust valves are in the backbox, so even if I make changes to my midpipe, I'll still retain valve functionality for a somewhat lower volume setting)

Any suggestions welcome.

[r33_RGSport]

Originally Posted by Supr3me

So I've read through a lot of the exhaust threads here and honestly still don't have my primary question answered, so posting it here.

I've already done the primary cat delete but I'm looking for a more aggressive sound. My 340i was catless MPPSK so basically straightpiped. I'm not going for quite that loud, but louder.

I'm trying to decide between:
-secondary cat delete
-midpipe resonator delete
-RG Sport midpipe (which I believe deletes both)

Which would you go for and why?

(Also just want to confirm that the exhaust valves are in the backbox, so even if I make changes to my midpipe, I'll still retain valve functionality for a somewhat lower volume setting)

Any suggestions welcome.

Exhaust valves are at the muffler itself.

[RoWoX3M]

Sound is so subjective. It can get raspy quickly so it depends what you're looking for. If you're just after max volume, then removing secondary cats and resonator makes sense. Since you already have a catless downpipe, maybe just start by removing the secondary cats then the resonator if that's not the sound you're looking for. Midpipe solution like Ben is offering and others is nice because if you want to revert to stock it's a little easier then custom welding route.

[RES EXHAUST SYSTEM]

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