This looks to be the same pipe marketed in the '80s as the MX3. One of his testimonials even refers to it as the MX3. I never knew anyone that ran one but they were advertised in most of the bike mags back then.
Out of curiousity I pulled out an old bike mag and sure enough this is the same guy that used to call this pipe the MX3. He's just trying to cash in on the X-pipe configurations around today with some old stock he never sold. It could prove to be a decent pipe. Here's the text from the old ad,
4into1's ARE A LIE
Get serious. 4into1's were designed 35 years ago. How could a 1950's exhaust possibly improve the performance of your superbike? 4into1 brands are all the same. They all scavenge. Scavenge, especially on 4 valve engines is disastrous. It sucks out over 21% of the carbuetor supplied air/fuel; robbing your engine of Hp, requiring illegal rejetting, while increasing pollution.
MX3, the 4 stroke expansion chamber, prevents overscavenge, boosting Hp, reducing pollution, usually with no rejetting. Giving you more low end, more mid range, and more top end, instantly! Your superbike will pull harder from 4,000rpm to red line. The MX3 powerband actually improves streetability, along with performance. For all out performance, no exhaust works harder than MX3.
My patent pending MX3 is guaranteed to outperform any Kerker, Supertrapp, or VHR on your bike the way you drive it. I'm not making wild claims, I'm guaranteeing results. No one else can!
YOU HAVE NOTHING TO LOSE BUT THE PLUMBING!
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