moreponies

Hello,

I have a completely stock 01 S4 and don't intend to go down the path of mod'ing the vehicle, i like it just the way it is, but noting all the problems that people seem to have with the stock BPV's and seeking a permanent fix i found a link for Stratosphere's Hyperboost HX valves.

Does anyone here use them or know anyone who does? I just wonder if they make a noticable difference over stock regarding throttle response/turbo lag? Mostly the question boils down to ... are they worth almost $300?

Thanks,<ul><li><a href="http://www.stratmosphere.com/hyperboost.htm">Hyperboost HX, BPV</a></li></ul>

Mike2kS4

I'm running peak boost of 24# and I run em. Search for 710N. You can get them at an audi dealer (they usually stock them) for around $30 each, or online for a bit less.

BiturboBoy_V2.0_S3--

have yet to blow one even on chipped boost levels...

moreponies

And those are a permanent solution to the problematic stock BPV's?

PS-I love those rims, and i was thinking something similar with my black audi, i thought the two toned rim with black inner's would look nice but haven't found any i really liked. Where can i get some like that?

Thanks,

Captain Matt, I be

<ul><li><a href="http://www.tirerack.com/a.jsp?a=AR4&url=%2Fwheels%2FDisplayWheel.jsp%3Fwhe elMake%3DSSR%26amp%3BwheelModel%3DCompetition%26am p%3BwheelFinish%3DAnthracite%2Bw%252FMach%2BLip">c licky</a></li></ul>

moreponies

Hmm, the picture doesn't come up, but thanks for the clue, i'll do a more in depth search on Tirerack.

2.7Twin

<center><img src="http://pictureposter.audiworld.com/47246/picture_030.jpg"></center><p>

Swank4

Same here - been running 710Ns on Stage 1-2 power for about 30k miles and no probs.

Mike2kS4

Yes they are

Mike2kS4

Yep, I have yet to blow one on "Duck and cover" boost levels