The quick sum up is this: When tuned I have a "stutter". When not tuned the car runs like butter. RICA is looking at my downloads now but with the below info I'm wondering if anyone can point me in the right direction. (I do not think its the tune itself but the increased boost levels, so I doubt RICA can help with a remap)<p>Anyway, I finally installed a boost gauge and can now tell what the heck is going on, heres my findings: <br>When tuned I peak around 22psi and at peak boost is when this stutter happens. As it hits 22 it seems like it wants to go MUCH higher, but then I hear a "noise" and the boost flattens out while creating this stutter/hard felt loss of accel. This "noise" has a bit of a squeak to it, very mechanical, I am thinking its the wastegate flying open in a millisecond? In conjunction with the noise is the stutter in acceleration. <p>It sometimes spikes a good deal higher than 22 too (I think I saw 28 once <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0"> ) It stays smooth when it goes over 22psi though, until the "noise".<p>Any theories? Is this noise the wastegate?<p>**I'm wondering if the previous owner had a downpipe installed without an exhaust, causing these spikes on a stage 1 tune. How can I check this easily, any tell tale signs its stock or not???