Unity Performance Humza's FL5 Build Thread

[Unity Performance]

Hidden just above the cooling plate is the rear motor mount. I’ve had the Wunderladen Street RMM on the car since early November, and it became my benchmark for both performance gains and NVH. Up to that point, it was easily the best mount I had tested since I started experimenting with them back in 2018.

That said, I always like trying new options, so we swapped in the COBB RMM while everything was apart. In terms of performance improvement, it’s very close to the Wunderladen. Where it stands out slightly is NVH. If I were to rate the Wunderladen a 4/5 for NVH management, I’d give the COBB a 4.5/5. The difference isn’t big enough to justify replacing a perfectly good Wunderladen mount, but it is noticeable and worth mentioning.

 

[ABPDE5]

I had a used 27WON snorkel from a friend’s FL5 part-out, so with the bumper already off, it made sense to install it at the same time. It does require removing the factory shroud, which may raise some concerns, but for a primarily street-driven car I didn’t expect it to have any meaningful impact on coolant temperatures.

It would be difficult to compare intake air temperature data before and after the snorkel installation, as the Infinity Designs Intake and Inlet were installed at the same time. Any changes in IATs would be influenced by all three components, making it impossible to isolate the snorkel’s contribution on its own.

I do have plans to upgrade the Rad once the RV6 660AS goes on. It’s not a mandatory upgrade, but as power levels increase, so does the demand on the cooling system. Additional cooling capacity is a worthwhile step to help manage the extra heat and maintain consistent performance.

FYI: the snorkel has been found to block a significant amount of flow to the radiator and cause coolant / oil temp issues. This is more of a concern for those taking their car to the track than it is for those who drive only on the street, but just figured I'd bring the pretty substantial negative impacts of this mod to your attention, in case you weren't already aware.