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How to core a motorcycle muffler: Part 7

Ducati Update 7a:

I’m hitting the finish line with the updates which I wanted to get done for the Superbike-Coach track day at Thunderhill West Raceway on 8/5/- so next Saturday.

First off… I am not willing to spend AT LEAST $4000 for a full exhaust system- nor about $2000 (!) for slip on mufflers (there is clearly that “Ducati” thang going on if you can follow me here). Yes I know it’s weight reduction, but A) wait and see, and B) you might wanna know what my test for a German magazine turned as we put 2 R1’s on the Assen TT Circuit to compare.
So based on my experience (which could be different than your opinion), I decided to stick with the stock headers and to ‘core’ the mufflers because they are a major bottle neck and heavy as a Smart car. Let me walk you through.

I took off the entire system to brush it clean. The exhaust flap in the Y-piece was easily removed and the hole got closed flush with a bolt. The exup servo motor becomes senseless and will be replaced with a 50 bux ESE-Eliminator so that the computer thinks… ‘all good’

At the same time I’ve removed the California EVAP canister (the smog block off plates and all the hoses and whatnot will be removed later). That’s a good number on the weight scale already, but what I could get out of those mufflers… holly crap
See the pic of the open box and the stuff in there?… that got all removed (cat and db eater, etc) and nicely welded up again- finished with a mesh. Weight reduction: 1.4 kg only on the mufflers, so about 4 pounds, and a db gain of X (video is about to come).

Cost on this one… almost non. After a map flash, there will be more peek power and the sound will melt your face!!!

Headcoach Can Akkaya