I just installed a TME pump system in my Pac Edge 540 Saito 100 last night.... I am waiting on the Slimline pitts to get here on Friday but in the mean time I tapped a muffler manifold and gave it a try last night...(in the dark) and yes even without preheating I was able to get some good results. I will let you know how much difference the slimline makes... I have found you have to make adjustments to the flow thats for sure. The nice thing about the TME pump is I can adjust the amount from the TX by setting a mix on a switch... so as throttle increases the amount being pumped increases and just flip aswitch to turn it totaly off. I will let you know after the big test this weekend.

John