Testing Vektor Performance Headers for the 991.2 Porsche 911 Carrera!Posted on July 15, 2018July 16, 2018byMike KojimaOn the 911, everything is pretty tightly packaged in a small space but everything is also pretty accessible once the car is up on a lift. We learned a few tricks that can save you a bunch of time and will make the header installation a snap.First Howard removes the nuts holding the factory exhaust manifolds in place. This was pretty straightforward and only took a few minutes.Next, this heatshield around the turbo needs to be removed. We are going to unbolt the turbos from the exhaust manifolds which will allow us to drop the manifolds without having to remove the turbos or exhaust from the car!The nuts holding the turbo to the manifold are removed next.Now the studs on the turbo are double nutted and removed. By taking the studs off the manifold can slide down off the turbo without removing it. RelatedPrevious page 1 2 3 4 5 6 7 8 9Next pageRelated TopicsEngineHeaders and ExhaustPorsche911991.2991 Previous Article CSF EVO X RacecarFeaturesMitsubishiThe CSF EvoX Racecar Build – The BeginningPosted on July 13, 2018December 4, 2019byMartin GonzalesView Post Next Article FeaturesSneak Peek: Home-Built Pikes Peak RacerPosted on July 16, 2018July 17, 2018byKhiem DinhView Post 6 commentsAfter admiring Porsche’s from afar for years and pretty much driving every Porsche made from the 60-90’s my thought has always been work harder and save up for the Turbo model. But since every model is now turbo like you point out and with the aftermarket coming to the rescue like these Vecktor headers it doesn’t seem that thought it really as valid anymore. Porsche’s in particular are known to be one of those cars that aftermarket parts often make less hp than stock so it’s great to see the opposite.ReplyThe 991.2 turbo is in another world compared to the 991.2 carrera. You’re going to spend a ton of money to get the 3.0L to the 3.8L level.I’ve heard from monstaka (french tuner) that catless pipes made a huge difference on their 510hp 991.2 S.ReplyThe base Carrera does start $70k below the base Turbo. Suppose you start with the Carrera GTS which has the biggest turbos and is $40k cheaper than a base Turbo. A tune alone on 93 octane bumps up the power 19%, or just short of the Turbo.The biggest exhaust restrictions on the 911s are the headers and cats. On the stock tune, there’s not much to be gained with an exhaust, but they may be different with a tune. Add in headers to the tune on a GTS and it should be right at Turbo power. So basically for about $5k. Granted, your warranty is probably gone. The GTS does weigh about 200lbs less than the Turbo. Add some high flow cats and intercoolers for even more power. I’d guesstimate another 30whp or so.ReplyI agree, Porsche aftermarket parts, as well as other exotic and semi-exotic cars, often have poorly engineered and validated performance parts that are both expensive and not performance enhancing. Sometimes they are poorly made as well. I have been surprised that the parts for Japanese cars for instance from reputable manufacturers are often made better and perform better. These Vektor Performance headers are impressive however in construction quality, engineering, and performance increase. I would really like to add a cat back and an access port to these. A few tweaks and you could probably get a Carrera to easily give the high buck Turbos and GT3’s the business.ReplyWith pure bolt-ons (exhaust, headers, ICs, hybrid turbos), E85, and COBB AccessPort, it’ll do over 600whp. Figure you buy a base model off lease for ~$70k, you can have a 600whp Turbo beating car for under $90k.ReplyFrom what I understand the engine is very reliable at this power level as well.ReplyLeave a Reply Cancel replyYour email address will not be published. Required fields are marked * Your Comment *Name *Email *Website Notify me of follow-up comments by email. Notify me of new posts by email.