Performance equals $$$$. This is an age old equation that is almost infallible. First liar doesn't stand a chance. This is an equally infallible statement. MOST people with turbos are running under 7 lbs. of boost and they are getting about a 40-50% increase in horsepower over stock. Thus it would appear that they are producing somewhere between 180-200 hp. (I would lean towards the lower number.) Some are running much higher boost. However, some of them have also reduced compression and/or spark advance to reduce pinging. That works, but a price is paid in performance. There was a French "custom" sports car a few years back that had the PRV6 engine as it's basic building block. When they were done with the mods it produced 675 hp. Top Speed? Not 1 in 1000 car owners know what their top speed is because they have never had the opportunity to test it. So, they rely on advertised claims. Not all of those claims can be verified. Production specs said 130 mph (but you'd better have a looooong road to get up to it). The original turbo kits hinted at 140 mph. Now with product liability and the like, no such claims are usually made. Nobody in their right mind expects to take a 20 year old car of under 3 liters and drag with a Mustang 5.0 or race a Porsche GTR across the salt flats. My grand Cherokee has more hp than my D, but it doesn't go as fast. My VW Type III has practically NO hp and yet it is fully as fun to drive and gets lots of looks. Given that, I always wonder why the fascination with raw numbers. We don't need performance numbers to brag about our cars. They get looks, compliments, ooooh's and aaah's just as they are. Sorry - just hit a sore point and thought I'd give my 2¢ worth. Dick Ryan VIN 16867 Twin Turbos - don't know the hp or the torque but sure know it is FUN to drive.