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The GRP exhaust does have a spring, and I haven't had any issues. I've used the valve controller a ton to record numerous sound videos, raced an Autocross event, and did a track day at the Circuit of the Americas with no issues. You can see how the valve motor mounts up to the GRP Ti exhaust at...

There are two different lengths of bolts that go into the rear diffuser. Those two bolts you show should be the longer 25mm bolts (I believe there are six in total). Whereas, all the others around the outside are 20mm. When I first took my diffuser off, I didn't realize there were two...

GRP Titanium exhaust, GRP decat pipe, and Milltek exhaust valve controller sound video below. GRP Titanium exhaust saves almost 19 lbs over the stock muffler and tips.

On my scales, the GRP Titanium exhaust saves almost 19 lbs over the stock muffler and tips.

IMO, the best bang for the buck is the decat pipe and the valve controller. I love the ability to manually control the exhaust valve, which gives you great exhaust noises with minimal effort. If you want a more tuned-sounding exhaust note, less exhaust resonance in the cabin, 20 lbs of weight...

Titanium exhaust video! You can compare it with the OEM exhaust and decat pipe below.

Installation and exhaust sounds!

It could be because the 718 GT4 weighs about 90 lbs less than the Emira. My Emira weighed in at 3,267 lbs stock with a full tank of gas and full PPF. I'm seeing similar GT4s weigh about 3,180 lbs.

This car’s Lotus 77-style bodywork was originally built for the 2013 film Rush starring Chris Hemsworth and Daniel Brühl as James Hunt and Niki Lauda. Following its acquisition by a private party, the bodywork was fitted over a steel Formula Ford chassis. A Yamaha 600cc motorcycle inline-four...

The titanium doesn’t add any additional sound when the valve is 100% open. It just changes the tone a bit. If the valve controller is set to OEM operation, then you should notice more sound at normal to low engine RPMS. I plan to have a new exhaust sound video in the next week or so comparing...

This is a great tip!

No official pricing yet.

I have the Cup2 tires, and I noticed the same increase in tire pressure when I was out at COTA last week. My rear tire pressures cold were 32 psi, and after a session, they jumped up to almost 39 psi. I didn't notice much movement under hard braking. My car is fitted with the Sports suspension.

Lotus revises Emira line-up to enhance offering to customers. Emira Turbo, Turbo SE, and Emira V6 to replace the existing First Edition variants. New Emira Turbo SE variant features new levels of performance including an increase in power and torque over the existing Emira First Edition, making...

It is louder and better sounding over the stock muffler. It projects rearward more than forward towards the cab, as the stock exhaust does. Several times, with the valve 100% open, I had to roll my window down to check the sound because I thought I had the valve closed. Once I rolled the window...

You can click on the EPOTM Winner prefix banner to see all the winning threads for now. We will compile all the winning photos at the end of the year and put them into one photo thread.

It seems much quieter in the cabin on the highway after the titanium exhaust. The stock exhaust is much more "boomy" and resonates in the cabin more than the titanium exhaust does.

Wow, those are some serious brakes!

They are, but I'm pleased with the result. I think they help project the exhaust sound rearward because they don't have all the perforations that the stock tips have. Pro Tip: If anyone is considering changing their exhaust tips AND adding any rear carbon fiber bumper pieces, order them all...

Happy to help! Expanding the pipe is easy once you have the tool and know the process (see my install video for the de-cat pipe). There shouldn't be any issues with expanding it enough for a tight fit.

EmiraForum.com would like to welcome RB Performance Brakes as our newest Supporting Vendor! Please take a moment to visit their website at the following URL: https://racingbrake.com/emira-2022/

Yup! The new contest has been posted.

An absolutely stunning photo!

It sounds fantastic! If you have a valve controller and the third cat delete, I would say you don't get much more sound with the exhaust valve 100% open, if any. If you run the exhaust controller in OEM mode, you get a much better exhaust tone than the stock muffler, in my opinion. With the...

LOG43 was a giant success! I had a great time and met a lot of cool people. I hope to attend many more of these events.

Here's my DIY video on how to install the GRP Titanium exhaust.

Here's my DIY video for installing the GRP Titanium exhaust and exhaust tips. It also contains lots of good information for anyone wanting to know how to remove the rear bumper on the Emira. I hope you find this helpful!

That's great news! I'm excited to see your brake kit options for the Emira!

I've had great results with Hoosier tires in the past, so I'm glad to hear they released this new TrackAttach Pro tire!

I did an Autocross event on Saturday and a track day at COTA on Sunday. My Emira has the Sport suspension and Cup2 tires with stock brake pads and fluid. It performed really well even when the track temperatures reached 100 degrees. I was impressed by how well it did in stock form. If I decide...

There were no issues with the noise level or threshold requirement at COTA. It hung right in there with all the other loud high-performance cars. :cool:

In preparation for the event, I also got an Alcantara key fob cover from @Bancho, which I really enjoy having.

I just got home from LOG43, and the hook is still rock solid! Thankfully, I didn't need to test its towing ability. It looks great, is still tight, and is in the same position as when I installed it.

After an intense and heavy weekend of driving and racing, I'm happy to report no issues with my GRP titanium exhaust system. It was well over 100 degrees on the pavement this past weekend, and aside from many miles on the highway, I also competed in an afternoon Autocross event and a track day...

Me and @silent cilantro waiting to unleash the beasts! 😎