It's a fuel system modifier... a band aide of sorts. It's a device that modifies time of injection and O2 sensor readings. You connect it between the harness and the injectors and the O2 sensor and it takes the reading from the O2 sensor and then feed false information to the computer in order to modify the fuel ratio. It also connects between the harness and the fuel injectors and can hold the injectors open longer to once again modify the fuel ratio.
These type of devices were originally designed as a patch for bikes that did not have a programable computer. Now days with most sport bikes coming with a programable computer the best way is to install a tested and proven engine map.
Coworker of mine has it installed on his 08 Gixxer 600, along with a Two-Brother's system and he couldn't be happier with the end result. He's got over 6,000 miles on it, no glitches, no hiccups, nothing.
For a "patch" I think it'll do a damn fine job providing me the results I'm looking for.
The Arrow slip-ons provide better sound quality from the muffler with no loss in power across the entire spectrum. The ECU is reprogrammed for this application...there are several codes, mine being the one for a more open system, as the baffels have been removed. The sound is great, and the bike is not running too rich under the reprogramming, and my fuel millage remained consistent to pre-application. The one downside: That great grunt sound ( which is actually the air intake), is not near as noticable, due one to less back pressure ( I think ) and two, the louder pipes. I do wish the installation would keep the same sound as the factory intake sound, but changing the mufflers does change that soound slightly. That being said, the slip ons sound awesome!!
I doubt it's due to reduced exhaust back pressure. Exhaust back pressure should not affect intake velocity. It's more likely that the exhaust is loud enough it's making the intake sound quieter. If you want the intake to be louder take the screen/noise baffle out of it.
Alrighty...better late than never. Had my AC @ home take a crap on me Friday, so I didn't get around to the exhaust till yesterday.
Installation went fine. No problems with the exhaust at all. The "juice box" was fine too, had to do a little figgling with the center injector due to it's location, but ultimately everything went smoothly.
It's much deeper in tone than the stock system, no doubt. At idle it's not ALL that much louder in my opinion, just a deeper, throatier tone. Drivability is excellent, same nice even power band as stock, but the butt dyno says it is pulling stronger from 8K and up. Wound out, it sounds awesome, and doesn't mask the great intake noise either. I made about 5 passes under a bridge overpass just to hear it...I'm 16 again..haha
Overall I'm very pleased with the combo.
Here's a couple pics and a clip.
Excuse the quality of the video, I'm not the techiest guy on the planet, but such is life, right?
Iīve put the TORīs in my street triple (1 month old but it seams to lost some punch until 2500 rpm (bogging). In city itīs noticeable.
Is it normal or the map is wrong?
The dealer said it made the mapping.
I also have TORs on my ST-R , there is a factory Triumph map the dealer should have installed, follow by the 12 min tune. No bogg or loss of power at any rpm range. I would get the correct fuel map.
Good luck. They're not even cheap on eBay. Madss has the slip-ons for $849.99 and the 3-to-1 for $1019.99. That's the cheapest I've seen.
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John
3-7-77
Some people are like Slinkies. They're really good for nothing. But they still bring a smile to your face when you push them down a flight of stairs.
but it seams to lost some punch until 2500 rpm (bogging). In city itīs noticeable.
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