matt777

My understanding based on the muscle car world is that joining the exhaust system from bank to bank helps with scavenging. An H or X pipe is always used. This is of course done before the mufflers. Would this not apply to our engines also?

Stealth 993

Yes, for low end torque & midrange. But I think for top end power you just want it straight. With straight pipes it's tuned for a narrow power & X/H is for more lower broad power.

matt777

The X style would be best for me then seeing as its mostly used on the street.

brucec59

The comparison in that post is Dansk vs stock cats, not split vs X.

In any case, I love my DACH sport cats! Meow!

Martin S.

Nothing will give you any real power gains.
Take a look at FD Motorsports. I have the Stage II's.
http://www.fdmotorsports.net/index_files/Page1456.htm

I have the Stage IIIs....incredible!

bart1

Indeed it is. Colin still uses split flows , though. I contacted him about his recommendation before I got these. We're talking minute, if any, differences here on a near stock car. I currently don't have anything from Chris (DACH), but have dealt with him and can tell you he is absolutely a stand up guy and I wouldn't hesitate to recommend him.