whiteboost

2016 Lexus GSF - Looking to put some Headers and a Tune on it , What kind of WHP increase can we expect ? Was thinking of going with the PPE Equal Length Headers and their ECU tune by mail . Headers + Tune and install comes close to $5k - so seeing what kind of power we can expect. I dont want to go supercharger yet as I have another car thats my " Fast Toy " just looking to add a little more to this N/A . Currently its got a Apexi Midpipe / Toms Exhaust / RR Racing intake/shield .

504GSF

RR Racing has literally done all the research for you. Most performance mods get discussed in the RC F forum. Performance increases will be identical.

https://www.clublexus.com/forums/rc-...h-session.html

BiZ

Great read! I had similar results on my 91 ZR1 back in the day. ~17WHP with headers, another 12 WHP with a cat back added. Only difference was the ability to port the intake on that car. Gained ~ 23WHP with the porting. And another 25WHP with a tune. I have the dyno files somewhere on a 3.5 floppy 😂

lobuxracer

iTrader: (2)

You might also want to look into Tuned by Loi. There is a thread on this in the IS F forum. He recently added RC F and GS F to his support.

https://www.clublexus.com/forums/is-...ed-by-loi.html

RRRacing

iTrader: (1)

Hello,

Going with a header and tune will net you 40-50 wheel HP. With our tune, you can also blend in some E85 with your pump gas and increase those numbers. If you take a look at the link, we put a 100k mile RCF through close to 100 dyno pulls to find out what each mod variation will achieve. This was our way of being the most transparent tuning option available on the market. No one in the Lexus market has put the type of R&D in the way RR Racing has.

​​​​​​https://www.clublexus.com/forums/rc-...h-session.html

Here is a review from a very recent customer with an RCF. In this link, you will find what is a predictable experience that you can expect when using our tuning software.

​​​​​​https://www.clublexus.com/forums/rc-...15-2016-a.html

-Justin
RR Racing Sales

Mazderati

Is RR actively pursuing 2018+ ECU tunes or has that ship sailed?

RRRacing

iTrader: (1)

Absolutely in the works. The thing about RR is that Rafi will never release a product that isn't available and properly tested with results to show it works. We will be offering a finished product with a link and dyno sheet at the same time it's announced that it can be tuned.

-Justin
RR Sales

Mazderati

Cool, thanks.

finny76

AWESOME... Glad there is some hope for peeps that have a 2017+ GSF/RCF and have been patiently waiting for the tune...

designo

iTrader: (6)

And non-US 2016 GSFs

UZ214

I hope it comes out soon, it’s a 2017 is 5 yrs old now.
I am waiting on headers just because of the tune

NotFSport

I'm confused by this, doesn't it disagree with the baseline dyno numbers from anyone else on this forum? This is saying that we're at 419hp at the wheels STOCK? What am i missing?

This user got 392 whp stock: https://www.clublexus.com/forums/bui...ld-thread.html

Here's one on a dynapack dyno, also stock. 390 whp https://www.clublexus.com/forums/gs-...o-results.html

GregCanada

The first test clearly says 381whp stock, 392 with exhaust, 397 exhaust with tune.

NotFSport

That's torque.

GR8WHITE1

Does anyone tune on the crappy watered down 91 octane? I wouldn't want to be trying to blend every tank of fuel. I already have a race car lol.