jus a quick question guys ummm sooo does this set up produce more hp than the stillen set up? like hfc from berk and full cat back from stillen? whats the gains on the stillen catback only?

What does having X pipes offer to performance and sound from the original design?

The stillen CBE with Berk HFC netted +37.7 RWHP, roughly. I say "roughly" because the baseline wasn't done on this specific car but an identical one (stock). Also I think there was a time period between the dyno baseline and the dyno with mods. The gain was with stock intakes, but was in the south east so temperatures would have been substantially cooler (also wasn't in the summer).

From what I gathered the FI exhaust netted +23RWHP from HFC and their CBE. However theirs was done on the same day, not weeks apart. Theirs was also tested in substantially hotter weather.

I suspect that if we see guys with the FI setups post up their before and after dynos you'll see the numbers will be probably pretty close to that of the Stillen setup. I don't see how, by design (but i'm no expert), the FI exhaust wouldn't produce the same power levels of say the Stillen.

o ok thanks man for the heads up..... ill do more research on that one... but im guessing those aspects played a role in the out come of the dyno...

Oh I'm sure those factors came into play. If i had to guess the FI and Berk Exhausts were dynoed in temperatures that were maybe +50 degrees more than that of the Stillen. (The Stillen info most of us have are from Semtex's result and testing and can be found in his journal.)

I don't want to get too off topic in this thread since it isn't the place for it but yeah....

Props to F.I. for this exhaust, can't wait to see your tunnel video, and video of the straight X pipe!!!! :happydance:

alright wakeup Tony, wheres the tunnel video?!?

looking forward to seeing/hearing this straight x-pipe set-up. dyno results :tup:

It's incredible that people actually still believe the dyno numbers from that. No way the stillen makes that much with a y pipe. The dyno needs to be done on THE SAME car stock, then put the stillen on and dyno. Which is exactly what F.I. has done which is WAY more credible results.

Thank you thank you!

All PM's replied.

Which is why my post says this: "I suspect that if we see guys with the FI setups post up their before and after dynos you'll see the numbers will be probably pretty close to that of the Stillen setup. I don't see how, by design (but i'm no expert), the FI exhaust wouldn't produce the same power levels of say the Stillen."

Any vids today??? :)

The tunnel video is uploading to Youtube as we speak. If I do not post the link tonight someone else can do the honors!

Here we go again... enjoy!

http://www.youtube.com/watch?v=lrzrF_afCjw
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