One of my vendors has been working on some custom exhaust ideas for our 818s This is the same person that designed the cooling tubes. I will have a breakdown of whats available and what it will cost shortly. Wanted to post some photos right away though.
Here are the 3 basic options. We haven't decided yet wether to offer them in stainless or just steel Leaning towards steel for cost. All pipes are American made and assembled by professional tubing specialists.
The straight pipe might be best for the 818R or if you want to modify but not start from scratch.
All pipes will have O2 ports if needed.
Here is the prototype mounted on my car. This is a 3 inch system with just the converter. Not sure any more will be needed.
Mounting brackets to attach it to the transmission will also be available.
These exhausts were designed with FFRs new trunk in mind. There should be enough room to fit the trunk with this exhaust system.
This picture shows where it will exit out the back of the car. Simple and neat.