Dealer installed RS2 Performance Kit?
#24
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This is an RS2 manifold. Notice how high the wastegate mount is above the runners and all the runners meet at the collector at the turbo flange.
<img src="http://partsdirect.s-cars.org/images/rs2manifold.JPG">
Another small shot of the RS2. You can really see how high the wastegate sits on this manifold relative to the runners.
<img src="http://www.fourseasontuning.com/parts/034253031A.jpg">
This is stock with a shorter mount for the wastegate and the 1 and 5 cylinders going to the wastegate while 2,3 & 4 go to the collector at the turbo flange. This shot is upside down as it would be mounted in the car.
<img src="http://www.sjmautotechnik.com/usedparts/S4Parts/P9040016.JPG">
<img src="http://partsdirect.s-cars.org/images/rs2manifold.JPG">
Another small shot of the RS2. You can really see how high the wastegate sits on this manifold relative to the runners.
<img src="http://www.fourseasontuning.com/parts/034253031A.jpg">
This is stock with a shorter mount for the wastegate and the 1 and 5 cylinders going to the wastegate while 2,3 & 4 go to the collector at the turbo flange. This shot is upside down as it would be mounted in the car.
<img src="http://www.sjmautotechnik.com/usedparts/S4Parts/P9040016.JPG">
#26
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I bet the stock manifold is more efficient off boost. The RS2 gives no consideration to the exhaust path off boost and goes for the most efficient path to deliver exhaust gasses to the turbine.
#28
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<center><img src="http://is.rely.net/2-93-39556-l-P42MYWiH1QqbsUE3ttqeyw.jpg"></center><p>I'm pretty sure it looked like the 1 and 5 were going into the turbo directly.
what a weird setup for the stock piece... why are they only powering the turbo with 3 cylinders!?
what a weird setup for the stock piece... why are they only powering the turbo with 3 cylinders!?