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Forum: Performance and Technical Chat

01-21-2015, 02:20 AM

Replies: 25

Adding performance exhaust to 2001 Boxster S

Views: 7,584

Posted By edc

If you have only got one pair of cats...

If you have only got one pair of cats (middlepipes) and none in the manifolds (headers/front pipes) then changing the manifolds does seem to add a bit more zip to the engine. If you are on boxa.net...

Forum: Performance and Technical Chat

01-07-2015, 06:14 AM

Replies: 25

Adding performance exhaust to 2001 Boxster S

Views: 7,584

Posted By edc

That might be true in North America but in the UK...

That might be true in North America but in the UK and much of the rest of Europe the 986 only ever came with 1 pair of cats no matter what year of car. The headers are cat-less.

Forum: Performance and Technical Chat

01-06-2015, 01:11 PM

Replies: 25

Adding performance exhaust to 2001 Boxster S

Views: 7,584

Posted By edc

Is that a before and after dyno or just a figure...

Is that a before and after dyno or just a figure back ton the reference book output figure?

Forum: Performance and Technical Chat

01-06-2015, 06:43 AM

Replies: 25

Adding performance exhaust to 2001 Boxster S

Views: 7,584

Posted By edc

I'm in the UK so my car comes with only 1 pair of...

I'm in the UK so my car comes with only 1 pair of cats anyway. I have had the cheap ebay manifolds on both my Boxsters and with the current one have them mated to a pair of 100 cell cats. I didn't do...

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