ECS Corvette C5 Automatic Trans / Rear Diff Brace
ECS Corvette C5 Automatic Trans / Rear Diff Brace
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Why would you want or need a ECS Trans / Rear Brace?
Ever launch your Corvette hard, and it feels like the wheels are hopping? That wheel hop is actually the Drive line of your Corvette Shaking. In the C5 and C6 Corvette the transmission essentially “floats” in the driveline. It is not mounted to the chassis whatsoever. The Engine is mounted to the front cradle via the engine mounts and the rear end to the rear chassis. Both Factory mounts are rubber, and allow a certain amount of movement – especially under hard launches. This movement is felt, and usually explained as wheel hop and it can do some serious damage to your car!
So what does a ECS Trans Brace Do?
The ECS Trans / Rear Brace gives added rigidity to the entire driveline by tying the trans and rear together as a complete, more rigid unit. The ECS Trans Brace is made from top quality materials. Front and rear mounts are fabricated from laser coated, zinc coated steel with stainless steel hardware and aluminum tension rods to ensure a long lasting, rust free finish. The tension rods are turned from billet aluminum with high quality stainless steel heim joints with stainless steel hardware. The aluminum rod design provides increased strength, with heat expansion principles that match that of the aluminum transmission and differential.
The entire kit is easily installed or removed while using a lift or jack stands while the driveline is in the car. Lowering of the sub-frame is necessary for easier access to the M6/M12/A4 transmission brackets and is designed to be a true, bolt-on installation kit that can be installed in a few hours using regular, commonly found metric/SAE hand tools. There is also no driveline vibration/noise resonated into the passenger compartment/cabin of any kind and interior sound levels are unaffected by the brace.

ECS Corvette C5 Automatic Trans / Rear Diff Brace
Let customers speak for us
from 281 reviews
First Impression:
The coilovers look nice in the box. Everything arrived in good shape. The full print carton is nice, however don't like it sitting on my front porch for long (everyone driving by can see what I ordered).
Instructions:
The instructions are decent, however some additional detail would be helpful. Not a big deal, but some info on the top strut mounts would be helpful (just remove everything that was on the car, nothing is re-used, as reassurance). I removed the top control arm mounts for both front and rear to get it done... Worked ok, however I think the rears I should have removed the lowers. Live and learn!
I also cheated and cut the leaf springs, so I didn't have to mess around. Won't be going back on, so to the landfill they go! RIP sawzall blades.
The description for how to drill/make the holes in carpet is good and was fully utilized.
The preload instructions are decently written as well, with the different spring rates measurements being greatly appreciated.
Setting Ride Height:
Had a couple up and downs to get the ride height pretty close. Not a horrible experience. Being able to turn the body by hand is nice. A call out on the instructions of 1 turn = so many millimeters would be nice, with a mm to inch conversion table. The silvers video appears to be accurate, at 2MM per revolution, but that is predicated on you finding the video, and knowing it exists.
Calculating a baseline ride height and providing, for instance, if you turn 10 turns from bottomed out in the lower mounts = x inches of ride height measured at x location, with stock wheel size, would be an amazing addition.
Opportunities:
The biggest pain was the rear bolt on the rear top strut mounts. I know this is called out.... We had 6-7 different sockets, ratchet wrenches, straight wrenches, crows feet etc... They all suck. Not sure what the exact correct tool to use or approach, but I didn't find it. A design change or inclusion of the tool (****, charge $20 for it), would make for a much improved user experience.
First drive:
I had a leaking front passenger side strut, car was lowered on Bilstein b8 in the rear and stock disabled mag ride in the front. What a night and day difference. I hesitated on pulling the trigger on the coilovers for some time, as I wasn't sure the juice was worth the squeeze.
Well, if you're on the fence, just buy them. It is 1000000% worth it. The initial drive was in the wet, so couldn't push much. The car is much more direct, when you turn the wheel, the car goes where I want it to. Previously there was a little push and almost a delay on initial turn in. This is completely gone. General road manners are nice 10/12k (Thanks Brian!). I had all set to 12 clicks from full soft. The interstate feels great. All bumps feel much better all around and the car just feels more planted.
Future:
I look forward to dialing in the dampening as I figure out what I like and what feels the best for certain scenarios, as well as actually pushing the car. I have some work to do on ride height, but will put some more miles on prior to final adjustment and alignment.
Summary(TLDR):
Buy them dummy, its worth it!

Just what I needed for my 2016 wrx thanks
Brain was great to work with and the Raptor shift light is a 10 !

Worked as they should. Quick shipping

The correct one delivered new and in box. Shipped quicker than expected!

Brand new in sealed bag, correct product delivered.

Good deal, comes as described!

Arrived in perfect shape

When first purchasing the kit, it was very straight forward. I told them what I was looking to do, they directed me to the exact kit with everything needed included.
I recently had an issue with one of the struts, and FIP very quickly responded and handled everything with Silvers. New strut arrived at my doorstep within days.
Highly Recommend ordering with FIP.

Delt with this company online. Quick shipping and quick to call about my order to get it solved. 10/10 all around

Set of 3 hood vents installed on my 03 Z06, great product, fits great and pulls out the heat 🥵

Fast shipping great customer service

Brian at FI Performance always goes above and beyond to take care of customers. I am a repeat customer and will continue to use them for all my needs. Thanks again Brian, amazing as always!

Exactly what I needed for my lowered C5. Full range of adjustment and quality made product.

Got a great product. In a very timely manner very happy