Sorry gonna have to disagree on that....personally i dont think an inline 4 should have a dual exhaust...cant wait to get rid of my stock and get a single. nice work on the diffuser looks nice u should patented that and start a business!

 

What's wrong with an inline-4 having a dual exhaust? It's not like a V engine tho where you have two completely separate exhausts coming out the back. Still tho I don't see anything wrong with a dual exit muffler canister.

 

The exhaust hole is still there..