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The ULTIMATE OEM style high performance replacement muffler for your GT3!
As many GT3 owners know, the OEM mufflers are prone to cracking, breaking and blowing out, particularly the titanium mufflers on GT3RS cars. We wanted to design a muffler replacement that not only fixed that issue but also improved on the OEM design. Using our 25+ years of air and water-cooled experience, we took the valve open tubing to 2.75in / 70mm which is the optimal diameter for GT3 engines to have low restriction but maintain high velocity and high GT3 pitch for the signature GT3 CUP car sound. Then, we implemented our signature investment cast X-Pipe for optimal exhaust scavenging. The X merges the two cylinder banks without creating any restriction in exhaust flow. To maintain the factory muffler’s exhaust note and lack of drone, we mimicked Porsche’s 7 chamber design. This makes for a completely drone free muffler, even when running catless race headers! Pair this with our Side Muffler Muffler Bypass Pipes for the ultimate emissions compliant GT3 exhaust. This muffler is guaranteed to NEVER BREAK or fail.
SOUND:
This muffler will have a very similar tone to the OEM muffler, however, it will be a bit louder with PSE turned on. It will also sound a bit smoother and higher pitched thanks to our signature X-pipe.
POWER:
On our 991.1 GT3RS test car, paired with our Side Muffler Muffler Bypass Pipes, the Rennsport Muffler picked up an impressive 27 ft/lbs of TQ down low at 3,200 RPM. From 2,900 RPM all the way to 5,700 RPM it picks up 10 WHP or more, and peak WHP is up from 446 to 454! That’s a gain of 8 WHP or 9 HP at the crank.
FEATURES:
NOTE:
We're currently working to get more reviews for this product. In the meantime, please take a look at our reviews from other platforms.
Just got my Fabspeed Maxflo Mufflers installed on my BMW E90 M3! Could not be happier. I have a fully catless setup, and had trouble finding a suitable rear section that would bring the car to reasonable volume levels, reduce drone, and cut down on the inherent "raspiness" of the S65. This exhaust ticks all the boxes! The volume level is surprisingly tame for the car being fully catless, but certainly louder than the stock rear section. In-cabin noise or "drone" while cruising is greatly reduced compared to the muffler delete I was running previously. Exhaust is absolutely perfect for a daily driver. The "rasp" is just right as well. Sounds incredible on the downshifts. Power and low end torque, surprisingly enough, increased greatly. I keep getting compliments from people at car shows, gas stations, and even at stoplights. Fabspeed was an excellent company to deal with as well. The owner Joe Fabiani is a stand up guy, and scheduled me in super early on a Wednesday morning so I could make a business meeting later in the day. The service was fast and professional, and their tech Dustin walked me through the exhaust setup on my car, and allowed me to customize my choice of tips, and assure their placement is perfectly to my liking. I've read some distasteful reviews of Fabspeed as of late, but the majority of them are frankly not true. I am a former employee of the company, and have seen all the ins and outs of the sales team and fabrication facility. There is nothing out of the ordinary to see, and they will give any walk in customer a full tour of the facility showing off the cool equipment that they have to produce their systems. The recent slew of slander and distasteful reviews stem from one customer who tracked his car with a Fabspeed product not designed for the track, voided his warranty, and was stuck with the product. Fabspeed eventually made the situation right, but this customer has a reputation for slandering other businesses and throwing them under the bus for his own personal gain. It is painful to watch a company such as Fabspeed have to endure something like this, hence why I feel the need to address it in this review. Overall, great friendly service, awesome product, cool facility, and one AMAZING sound!
I purchased the Sport Headers for my Porsche 981 and it was worth every penny! They sound so much better than factory. I noticed improved throttle response and more pull when accelerating. Alec and Jason were my customer service contacts and they were friendly, knowledgeable, and helped me make the best decision for my car. Clean welds, superior craftsmanship, and no CEL. I will definitely be going with Fabspeed again when it comes time to upgrade the exhaust. No regrets and very pleased with my experience.
The team at Fabspeed is amazing! Their customer service, one on one consultation process, and performance packages are the best in the business. The shop is spotless, the décor is any man's dream cave.
I had heard great things about Fabspeed from others in the industry but my expectations were definitely exceeded with this project. The team at Fabspeed went above and beyond when developing and building the exhaust system for our NSX. With the pictures and video commentary, they made us feel like we were a part of the action and that isn’t an easy to do when you are 800kms away and in another country. I know that there were many skilled hands that were involved with making this project come to life and I would like to extend our thanks to the entire team. Moreover, I’d like to take a minute to emphasize how much I appreciated having Alec quarterback this engagement. He was a key part in making this happen and was patient, professional, and extremely responsive at all hours of the day/night. The NSX was greatly missed while it was gone but it came back with a new set of lungs and the sound is much more fitting of a car in its class. We are already considering working with them on another project and I would highly recommend them.
Scott K was my sales person. He responded immediately on the web and continued to deal with me on the phone. I purchased a valvetronic system for my R8 and it came out beautifully. We had a hiccup during the process where the system failed their QC process. It took an additional 3 days to get the exhaust, but the expedited it and threw in some swag for the trouble. All-in-all, these guys know how to deal with supercar customers and want to make sure that the VERY small community is well cared for. I'm incredibly happy so far and would highly recommend them.