GHL Header,Cats & Muffler

Gregory Smith · 03-15-2006, 12:19 PM

I have a 1988 911 Carrera and am thinking of upgrading the exhaust system with a GHL heater,cat and muffler. I would go with a SSI system but don't want to go through the problems of emmisions test every year in NYS.
Has anyone installed this system and give me feedback as to preformance, sound or any problems with the installation.

porschenut · 03-15-2006, 05:47 PM

I have the GHL sport cat and 1-in, 1-out muffler with the stock HE's. Here are two short videos I took shortly after the installation so I could capture the sound. The rest of the car is bone stock.

http://home.comcast.net/~d.bertrand/911_Carrera_Clip_3x.wmv

http://home.comcast.net/~d.bertrand/911_Carrera_Clip_2x.wmv

charleskieffner · 03-15-2006, 06:08 PM

hi bought GHL 1 into 1 muffler. and cat back. 110% happy and they are a great bunch of people. tell them i sent you. went in one day out of the blue to see operation. clean shop etc. quality product. cant say enough. remember shipping to the right coast is spendy if something is wrong. very happy with them. sound is great.

Por_sha911 · Por_sha911's Garage

I'm not familiar with GLH but with most headers you lose your heat. Will this be a problem for you if this is the case?

kepperly · kepperly's Garage

from a cost point of veiw I installed a bursch cat replacement and bursch muffler. These were traditional parts to Porsche and with the addition of A STEVE Wong Custom burned chip Thats all I wanted.

Keith Epperly
87 slant nose turbo look carrera cabriolet

KFC911 · 03:43 AM

I have a GHL 1 in/1 out muffler along with a Fabspeed euro premuffler, both are quality products and I'm extremely happy with both. Still have heat (even though I've done a 'heater backdate'). Just FYI, from what I've read, SSIs aren't the ideal way to go on the 3.2s anyways...

edited: I don't know if it's still in effect, but I also received a 10% discount on the GHL when I told them I was a Rennlist member (that more than paid for the cost of the membership which I had anyways.)

charleskieffner · 03-16-2006, 04:52 AM

think about headers very carefully. dont you think porsche dumped bazillions of deutsche marks into development of its exhaust to eeeek out as much ponies as possible????????? if it is a full blown racey car ..............DO IT. if its a 99% daily driver 1% track car DONT DO IT! have dealt with headers on countless race and street vehicles, the only ones EVER WORTH A DAMN were doug thorley headers and you will pay out the nose. header leaks and cracks suck big time! if you want to work on your car more than you drive it................you be the judge. money is or was no object when i looked into this mod. my 30 yr friend and porsche eng rebuilder/mechanic/racer gave me the above wisdom. showroom stock is fine by me and my wallet!