Does anyone make a 997.1tt pipe to bypass cats with OEM muffler?
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Does anyone make a 997.1tt pipe to bypass cats with OEM muffler?
Does any tuner/company make a cat bypass that keeps the stock OEM muffler for the 997.1 tt?
Is it even possible? Haven't studied the stock exhaust to see if the cat is a seperate piece or if it's welded.
-Jose
Is it even possible? Haven't studied the stock exhaust to see if the cat is a seperate piece or if it's welded.
-Jose
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Sure. They are called "test pipes" in the industry. Just search around, there are are few options. The rear of the cat is welded to the exhaust, so you would have to either remove it all, or cut the cats off and weld your test pipes in.
Example: http://shop.fvd.de/us/en/Porsche-0/9...Bypass%29.html
Replaces the cats and mufflers.
Example: http://shop.fvd.de/us/en/Porsche-0/9...Bypass%29.html
Replaces the cats and mufflers.
Last edited by A418t81; Mar 26, 2014 at 07:28 PM.
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Here is what the oem exhaust looks like LINK
DC
Last edited by therock88; Mar 27, 2014 at 09:26 AM.
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the bulk of the gains from exhaust systems are due to the either the removal of the cats or going from OEM cats to 100 or 200 cel cats. Paying 5k for just sound is a tough pill to swallow. In most platforms, you can get a really nice sound and great power from just swapping the cats out without touching the mufflers.
It's surprising that the OEM porsche exhaust is welded to the cats.
I'd imagine going with straights pipes and removing both cats and mufflers would be too loud.
Seems you have no choice but to bite the bullet for these overpriced exhaust systems or going custom from a muffler shop.
-Jose
It's surprising that the OEM porsche exhaust is welded to the cats.
I'd imagine going with straights pipes and removing both cats and mufflers would be too loud.
Seems you have no choice but to bite the bullet for these overpriced exhaust systems or going custom from a muffler shop.
-Jose
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Just not that simple with a turbo. People have tried the straight pipes and they are way too loud. If you go to a muffler shop for a system, chances are really good it is going to drone like hell. Unfortunately it isn't that easy to make a system that will sound good, add performance, AND not give you a cel. If you want to save money, buy a high end system used.
Last edited by ryem3; Mar 28, 2014 at 09:24 PM.
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the bulk of the gains from exhaust systems are due to the either the removal of the cats or going from OEM cats to 100 or 200 cel cats. Paying 5k for just sound is a tough pill to swallow. In most platforms, you can get a really nice sound and great power from just swapping the cats out without touching the mufflers.
It's surprising that the OEM porsche exhaust is welded to the cats.
I'd imagine going with straights pipes and removing both cats and mufflers would be too loud.
Seems you have no choice but to bite the bullet for these overpriced exhaust systems or going custom from a muffler shop.
-Jose
It's surprising that the OEM porsche exhaust is welded to the cats.
I'd imagine going with straights pipes and removing both cats and mufflers would be too loud.
Seems you have no choice but to bite the bullet for these overpriced exhaust systems or going custom from a muffler shop.
-Jose
I am installing a Kline system hoping for a relative cheap improvement wo paying $5k.
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