Exhaust? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Adam · 03-20-2007, 09:59 PM

If you want loud, the GHL is probably one of the loudest widely available systems out on the market. You sound like a good candidate for the GHL.

nastyboxster · 03-20-2007, 10:41 PM

Ray986s

It is sightly louder with the bypass pipes, but not much more since it was pretty loud already. The pipes did not pass emissions here in Vancouver, so I had to put the cats back on for the test. Luckily it's easy bolt on and only every 2nd year.

If you search my post, I have dyno test with all the bolt on, but I didn't dyno the car at stock.

I did notice some gains from the pipes when I first install it, but I'm so use to it now that I don't notice it.

LuisR · 03-22-2007, 01:54 PM

has anybody checked these exhaust. these are the OEM exhaust with 1" bypass pipes. these are in Europe but I am thinking on modifying mine. What do you think.

http://cgi.ebay.co.uk/Porsche-Boxster-986-2-7-Sport-Sound-Muffler-Exhaust_W0QQitemZ290094913227QQcategoryZ38786QQssP ageNameZWDVWQQrdZ1QQcmdZViewItem

look for the link to hear clip of the exhaust.

Gary in BR · 03-22-2007, 02:50 PM

I have done this, plus I placed tips on mine, the tips did not come out perfect but the sound is so good I will leave it just like it is.

http://www.youtube.com/watch?v=EEPv_l6GBfw

djomlas · 05-20-2007, 11:49 AM

97 and 98 dont have 2 sets of cats, just one, so only 2 cats.
therefore no need for cat bypass for those models.

2000SoCalBoxsterS · 05-20-2007, 06:50 PM

Djomlas is right. They didn't start with the extra set of CATs until MY 2000