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Forum: Boxster General Discussions

04-24-2008, 07:55 AM

Replies: 18

Secondary Cat Bypass Pipes Installed

Views: 1,995

Posted By jmatta

Exhaust note is a little louder/deeper at idle. ...

Exhaust note is a little louder/deeper at idle. Where it really sounds different is above 3600-3800 rpms; the mid range just opens up with an aggressive howl. I'll have to record some, as I have...

Forum: Boxster General Discussions

04-22-2008, 11:11 AM

Replies: 18

Secondary Cat Bypass Pipes Installed

Views: 1,995

Posted By jmatta

You will definately hear a difference with the...

You will definately hear a difference with the bypass pipes...it was quite noticable on my 3.2. Again, I feel the biggest difference before and after is the throttle response. On heel/toe...

Forum: Boxster General Discussions

04-21-2008, 06:44 AM

Replies: 18

Secondary Cat Bypass Pipes Installed

Views: 1,995

Posted By jmatta

If there is any gain, it is probably minimal. The...

If there is any gain, it is probably minimal. The car does seem to rev a bit easier on downshift throttle blips...could be my imagination, too. Where I really notice the difference is in the mid rpm...

Forum: Boxster General Discussions

04-21-2008, 04:26 AM

Replies: 18

Secondary Cat Bypass Pipes Installed

Views: 1,995

Posted By jmatta

The reason I did this (re-set by disconnecting...

The reason I did this (re-set by disconnecting battery) is the back pressure is affected by removing the cats. This was strictly precautionary, as I wanted the DME to read the set-up and not notice...

Forum: Boxster General Discussions

04-20-2008, 05:47 AM

Replies: 18

Secondary Cat Bypass Pipes Installed

Views: 1,995

Posted By jmatta

Secondary Cat Bypass Pipes Installed

Finally got around to installing bypass pipes on my 2002 S. My car already has a custom sport muffler (Pedro style) and an Evo Hi-Flow. I was hoping for a bit more music and the pipes have not...

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