Pazzo Gatto
Just got it firing!
I have a 2013 Stelvio that I absolutely loved right off the showroom floor. Of course, it ran lean as all newer bikes are forced to do. I thought about leaving it stock and accepting the OEM tune and performance. But, the more I rode it the more I wondered what it would feel like and sound like if it were upgraded. After 3 weeks of ownership, I decided to take the plunge and ordered a K&N air filter, a GPR Tri-oval slip-on, opened up the airbox and ordered the full GT-RX package (ECU, PC-V and AT-300). Following Todd's installation instructions went smoothly with one exception. The yellow wiring under the RH side cover will not work for positapping the AT-300 for the 2013 model year. There is only one yellow wire connection visible and tapping into it will prevent the bike from starting. That yellow wire seems to have something to do with a starter interrupt feature associated with the factory-wired alarm system. I spent many hours tracking down why it wouldn't start before removing that connection and then having the bike start right up. Instead, I tapped into the orange wire going into the 9-pin connector to power the AT-300.
The sound with the open airbox and the GPR (minus the dB killer) is simply sweet. It is not harsh at idle, just a nice basso profundo. When you open the throttle, you are rewarded with a full stanza of Italian 90 degree V-twin melodia. Now, there is no surging or popping. The bike runs noticeably smoother and cooler. Mirrors vibrate much less than before. No more intrusive heat from the left side cylinder.
Now, how do I justify the cost of 1,655.00 in upgrades to my wife, the keeper of the purse strings and She Who Must Be Obeyed? That's more than 10% of the new bike! Well, I decided that this bike is a keeper. I usually keep a bike for 3-4 years, then get the itch for something different. The Stelvio is special. I amortized the cost of the upgrades over a 10-year period and found that it only costs me 45 cents a day!
The sound with the open airbox and the GPR (minus the dB killer) is simply sweet. It is not harsh at idle, just a nice basso profundo. When you open the throttle, you are rewarded with a full stanza of Italian 90 degree V-twin melodia. Now, there is no surging or popping. The bike runs noticeably smoother and cooler. Mirrors vibrate much less than before. No more intrusive heat from the left side cylinder.
Now, how do I justify the cost of 1,655.00 in upgrades to my wife, the keeper of the purse strings and She Who Must Be Obeyed? That's more than 10% of the new bike! Well, I decided that this bike is a keeper. I usually keep a bike for 3-4 years, then get the itch for something different. The Stelvio is special. I amortized the cost of the upgrades over a 10-year period and found that it only costs me 45 cents a day!