Posts of the Week

Emira JB4 Tuning Now Available for I4 & V6 Cars!

GRP
May 5, 2025
GregsRaceParts.com

Just Released!
JB4 Piggyback tuning for the I4 AMG and V6 Toyota powered Emira.
Plug and Play type setup.
Wirelessly connected and controlled from your smart phone with the wireless control kit or a wired connection is also available.
Up to 95whp increase on the V6 powered cars!
Up to 69whp increase on the I4 Powered cars!

Click the link below for more details and to order yours!
JB4 Tuning From GRP

AMG I4 Dyno

V6 Dyno

May 2025 - Emira Photo of the Month starts now! Get your entries and vote in here!

Racing

Emira JB4 Tuning Now Available for I4 & V6 Cars!

GRP said:
I think between @kitkat and @mr.suntorytime they will have a clever mount setup. We could make a nice powder coating aluminum mount as well.
Initially you can use zip ties or the heavy duty scotch lok velcro to mount it though.

Yeah we got the community covered. I already have a bracket in testing phase and should be ready to go by end of next week.

Bronze Wheels on Seneca

S

I finally got my rims on the car. They’ve been sitting for months. I would like to lower the car but my driveway is too steep and I already scrape now.

Emira JB4 Tuning Now Available for I4 & V6 Cars!

Kimmax said:
Sells "optional" Cables extra, while you need it for 90% of the functionality.
Sells 150$ Wireless "Kit" and then charges 30$ extra for the app, only mentioned in a wall of text.

Their 3.5L 93 Oct map as shown in the Dynojet graphs goes to 396 foot-pound, that's 536 Nm for non-eagles. Jubu rates the stock pistons at maximum 500 Nm before you start seeing cracks:

Jubu 460 Kit dials boost back boost:

The primary source of extra power is probably just more boost by distorting the sensor values the stock ECU sees by the JB4 device.

Do with that information what you want. I'm not a mechanic, nor affiliated with anyone, but this is enough for me to skip this.

I brought this up in discussions with other Emira owners, Evora owners as well as 2/3eleven owners. Some Evora owners are well past 500Nm and the oem race version of the 3-eleven also comes with 525Nm from the factory. I couldn’t find evidence of those failing.

I’m not doubting Jubu’s experience with the engine but they also have incentives to sell you more parts and services.

Absolutely not trying to start a war here — but I think all of us here also recognize every modification has a certain amount of risk, if the risk is too high here, use the 91 octane map or just be happy with stock power and torque output and wait it out to see how people do.

May 2025 - Emira Photo of the Month starts now! Get your entries and vote in here!

Shuttle Launch

Alcantara Upgrades - Airbag & Guage Surround

I upgraded the airbag and gauge surround to Alcantara thanks to @GRP. I really like the way it turned out. Looks much more cohesive to me now and feels much better. Those two pieces were about the only items that you see in the interior that were not wrapped in leather or Alcantara. Gerg's people did a great job. I was able to remove (most) of the yellow stickers from my Sunvisor's, or I would have asked him to have those wrapped also.

Maybe he would be up for a group buy on the Sunvisor's.

Emira JB4 Tuning Now Available for I4 & V6 Cars!

GRP
May 7, 2025
GregsRaceParts.com

Emira Fan said:
[We will do some back to back Draggy pulls and post the results once we get a kit installed on the shop car, maybe some dyno pulls as well just to show a secondary set of results.]

Yes, would be great to have a second perspective (about this companies claims /dyno / draggy ) 95 HP from a piggy-back unit only, seems implausible. I would expect less than 20 HP, on a supercharge engine.

Fwiw, when the v6 car was on the dyno and the engineer there was working on it he emailed in a bit of disbelief himself. He ran it numerous times dialing things in but also to verify there wasn’t some fluke thing happening. That amount of power seems crazy, I know but I don’t think they have any reason to lie, they are a very credible shop and the owner is a straight shooter from all of my interactions with him.
Regardless a second, neutral back to back test to show results is always a good thing for some reassurance.
As with my intake testing we will do an unbiased, no BS test asap!

Emira JB4 Tuning Now Available for I4 & V6 Cars!

Both Mr Suntory and I will be coming up with some mounting options. We can’t help ourselves

Emira JB4 Tuning Now Available for I4 & V6 Cars!

I brought my v6 to burger on Greg's recommendation to have them do testing for JB4.

So technically i have the first unit.

The 91 map feels like it should have shipped with the car. A lot smoother to drive as well.

I will be testing the 93 map soon.

Posts of the Week

Week of May 31, 2025

Week of May 24, 2025

Week of May 17, 2025

Week of May 10, 2025

Emira JB4 Tuning Now Available for I4 & V6 Cars!

May 2025 - Emira Photo of the Month starts now! Get your entries and vote in here!

Emira JB4 Tuning Now Available for I4 & V6 Cars!

Bronze Wheels on Seneca

Emira JB4 Tuning Now Available for I4 & V6 Cars!

May 2025 - Emira Photo of the Month starts now! Get your entries and vote in here!

Alcantara Upgrades - Airbag & Guage Surround

Emira JB4 Tuning Now Available for I4 & V6 Cars!

Emira JB4 Tuning Now Available for I4 & V6 Cars!

Emira JB4 Tuning Now Available for I4 & V6 Cars!

Week of May 3, 2025

Forum statistics

✅ Latest upgrades

Trending content

Staff online

Members online

Recommended Websites