

Why We Choose HJS Catalytic Converters:
HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light. If you'd like to learn more, watch our video about HJS catalytic converters.
Sport Catalytic Converter (STREET) - This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. This product contains a High-Flow Sport Catalytic Converter solely intended for track and race cars as it is NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.
Purchase Disclaimer: Fabspeed Motorsport does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Fabspeed Motorsport will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls.
We're currently working to get more reviews for this product. In the meantime, please take a look at our reviews from other platforms.
i have their secondary cat by pass pipes and maxflow mufflers on my 958s. i also have their supersport exhaust on my 991. both sound amazing. i recently had a minor concern/problem and contacted them. john palo reached out to me the next day and sorted everything out. its been well over a year since i purchased and he took care of me no questions asked. johns customer service is top notch and i just wanted to write this review to thank him. great products and even better customer service, thanks fabspeed and john!
months before i put down my deposit on my custom ordered P car, i already knew which exhaust was going on it. even though there weren't any youtube vids of the system, i relied on the opinion of the Fabspeed employee and other forum members who had the system on their cars to tell me the characteristics of the exhaust. so, when there was a Father's Day sale, i pounced on it and had the exhaust sitting in my living room several weeks before i took delivery of my car. craftsmanship on the macan turbo slip system is flawless. no damage during shipping transit, either. the CF tips look awesome. install, done by a specialty shop near me, was done within 1.5 hours. system sounds exactly how i wanted it to sound; loud, pops, bangs, burbles, etc., etc. i even ordered some extra decals and they were kind enough to not charge me for shipping! now that's customer service.
Just ordered some parts from Scott at Fabspeed and let me tell you--EXCELLENT customer service! I'm super excited to get my bypass pipes! After talking with Scott I definitely felt more comfortable with my decision to buy these pipes from this company!
I reached out to Fabspeed via their chat feature on their website and made a deal with their representative on the spot. They called me within a matter of minutes to get my information and a few days later I had my exhaust for my 1988 Carrera. Perfect fit and finish! And did I mention it sounds great! Louis Houston, TX IG: @thirdcoast911
Was there for Porsche club event. Staff was incredibly knowledgeable and helpful with my questions about track upgrades for my car. The place was as clean as an operating room. Attention to detail in their engineering and fabrication were impressive. Looking forward to having them do some work for me.