Want to make my Mini noisier

[Bob 2009 rag top S manual]

Got a 2009 Mini rag top S. Manual trans. I want to increase my noise by 25% or more. What brand muffler system is out there out there that will do that. I spoke to Mini and they said no problem with keeping my warranty with most muffler system changes. I'm leaving existing exhust manifold on. Thanks for any help. Bob.

[bad venge]

The OBX are the loudest out there ... Mine Droned terribly I hated it

[Bob 2009 rag top S manual]

Thanks, I'll cross off the OBX. Don't want the loudest. My Florida dealership suggested I look at MC2.com for a selection of pipes. I'm just hoping someone can suggest a manufacture that will get me heading in the right direction. I know it's going to cost me at least a grand, parts and labor, but I want a quality product.
Thanks.

[Bob 2009 rag top S manual]

Update. Just ordered Borla touring sound Cat Backs. Hope their not to quite.