I wouldn't waste my time or money on the Rajay. I had a 2900 in a 190XT with a Rajay turbo on it. It never worked the way it should have. I put on three rebuilt ones and never got much boost accept for full throttle. I finally bit the bullet and bought an AirResearch straight out. That thing made a whole new tractor out of the "XT". Used to be that when the tractor would be under 1200 RPM you could pull the plug out of the intake and it would suck air in through the hole. With the AirRescearch it'll blow air out the hole at low idle. low end torque was greatly increased, smoke cleared up and I think it gained five horsepower on the top end. I wondered why I hadn't changed it over years earlier. You won't regret the extra work and expense to change it over.