The Xtreme Boost O2 housing/downpipe sounds incredible. I need to chill out a bit with mods for the time being, but I can't wait to get one of them.

 

Yeah, and it would be great to actually see the pic and specs of any of their exhaust products on their site.

 

^ PM Frank @ Xtreme Boost or go over to evoxforums, I'm sure there are pics and videos of their products there.

 

We have been under-going some changes and our new web-site will be up very soon with many new products and more info . For those that have not seen our products we can send you guys some pictures and more details . We just tested out one of 5 manifold designs we have been testing over the last 11 months and we're going back to our last design which gave us the best overall gains .

 

I bet the XS one may have a heat issue.....no way that sucker is fitting under the stock heatshiled and i bet it gets close to those AC lines...

 

xboost pm'ed

 

The AMS cast one should have an advantage over all others in that regard. Maybe even if it gives up some power, relative to the others (and I don't know if it does), the compromise for the sake of better heat management might just make it the one to get.

 

True...but i bet casting will be a pretty penny...

 

Just out of curiosity, has anyone proven a dyno gain with any of these? I don't know much about it, but I've heard the stock one is pretty good, so what makes you "love" a downpipe, especially when you're running the stock turbo?

 

Most of the vendors have their own dyno charts showing gains, I know AMS and ETS have. But, I take the raw numbers with a grain of salt because of the differences in dynos, testing methodologies etc.

 

Nobody mentioned Perrin. I am considering that or Xtremeboost. Perrin comes with the high flow cat. Xtremeboost requires a test pipe or high flow.

 

Got the UR one myself. Awesome and the T1R looks great as well.