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Hey all,
Newbie question, would anyone know what setup I need to create the pops and bangs of the 981 GT series stock exhausts with PSE ?
I don't know if it will produce the same effect, on stock w/ PSE (I don't see why it wouldn't) but I have pops & bangs. M-Tuner will do this for you if you ask. Great people to work with. They gave me several tunes I can use. Including 91 octane vs. 93 octane in case I decide to travel to the west. Give them an email, I'm sure they'll know what can and can't be done.
I don't know if it will produce the same effect, on stock w/ PSE (I don't see why it wouldn't) but I have pops & bangs. M-Tuner will do this for you if you ask. Great people to work with. They gave me several tunes I can use. Including 91 octane vs. 93 octane in case I decide to travel to the west. Give them an email, I'm sure they'll know what can and can't be done.
No. This was for the 718 Spyder. However, they have tunes for the 992 GT3, Touring & RS. Nothing for the GT4 RS yet. I'm sure they'll bring it out soon. As matter of fact, this is something I need to sort out for the incoming SRS. I'm going to send them a note to see where they are with this in case I need to suppress any lambada sensor related CEL. ** Just sent them a note asking about the GT4 RS / Spyder RS. Hopefully they'll hae something soon.
Just went through this whole thread and BC Fabs sounded the best to me. All these 4RS clips sound a bit hollow relative to a GT3, but hopefully this can be rectified with more R&D.
@Shookie Bad news. M-Tuner just got back to me. GT4 RS & 718 Spyder RS, and like GT3 before them, the ECU is locked. Which means, no way to tune this thing without an ECU flash by them. It can be tuned but one would have to send in the ECU, and the cost is $8K to do this. This is crazy. Flash is a flash. I have no idea how they are coming up with this fee. I hope we'll have an alternative options down the road.
When I asked them why it costs so much to flash the ECU, this is their respone:
"The 718 GT4 RS ECU is locked from the factory and the 718 Spyder ECU isn't. Unlocking the 718 GT4 RS is difficult and takes a lot of work, which takes approximately 7 days to complete before even being tuned. This ECU isn't able to be flashed through the OBD port.
Although the physical ECU in the GT4 RS and Spyder are similar, the internal coding and programming from the factory is different. "
Without knowing what the required process is, I won't make any judgments. But it doesn't make any sense. What can they be doing for 7 days straight to decrypt or bypass the lock? Unless it requires a digital key and the lockout is implemented at the boot sector / block. Still it's either you have the key or you don't. I am aware that some modern ECUs have these lockouts, and they are either broken (hacked) or not broken. Never heard of anyone having alternative method to decrypt it requiring 7 days.
If anyone who's done this to their GT4 RS / GT3, please chime in. I would love to better understand in more detail regarding this 7 days of work. Only thing I can come up with is possibly the computational power requirements using brute-force attack to 'find' the correct and unique key to each vehicle / ECM. Does anyone know if this is the case?
Last edited by Fractal-Spyder; 01-23-2024 at 11:36 PM.
Just went through this whole thread and BC Fabs sounded the best to me. All these 4RS clips sound a bit hollow relative to a GT3, but hopefully this can be rectified with more R&D.
Does anyone have any experience with the JCR Race Pipes vs Soul Race System? I'm planning to combine one of those with straight OAPs for the loudest possible setup while keeping stock headers.
Given both have very similar designs (X-pipe, no valves), they should in theory produce a similar sound despite the difference in material. My exhaust experience on the GT3 platform was that design/shape of the exhaust plays the biggest role in volume and tone.
From videos online, the JCR system sounds like it has a slightly higher pitch than the Soul Race setup, although I am not sure how much of that is due to most of the JCR videos likely having stock OAPs (being in Europe). A lot of the Soul Race system videos have the Comp OAPs, so it's not an apples-to-apples comparison.
Appreciate any thoughts, it's very difficult to make a judgement on exhausts via video and there's not a lot of 4RS cars running around with a variety of exhaust setups like GT3's do.
Does anyone have any experience with the JCR Race Pipes vs Soul Race System? I'm planning to combine one of those with straight OAPs for the loudest possible setup while keeping stock headers.
Given both have very similar designs (X-pipe, no valves), they should in theory produce a similar sound despite the difference in material. My exhaust experience on the GT3 platform was that design/shape of the exhaust plays the biggest role in volume and tone.
From videos online, the JCR system sounds like it has a slightly higher pitch than the Soul Race setup, although I am not sure how much of that is due to most of the JCR videos likely having stock OAPs (being in Europe). A lot of the Soul Race system videos have the Comp OAPs, so it's not an apples-to-apples comparison.
Appreciate any thoughts, it's very difficult to make a judgement on exhausts via video and there's not a lot of 4RS cars running around with a variety of exhaust setups like GT3's do.
We have a few 4RS's in SoCal running many systems already but not all. JCR is the highest pitch exhaust but also comes with the most drone if you do OAP's. Here is how they sound in person since videos are hard to judge by.
I would add it's always helpful to clarify the design/model of each exhaust in comparisons like these.
Valved systems that have mufflers (like the Fabspeed ones) are going to sound different than a straight X-pipe with no silencers.
To clarify my original question, I would think JCR non-silenced race pipes would sound similar to the Soul system with no resonator given the similarity in design:
I'm coming from a Dundon Crack Pipe so drone is of no concern Trying to find the most extreme setup possible
I would add it's always helpful to clarify the design/model of each exhaust in comparisons like these.
Valved systems that have mufflers (like the Fabspeed ones) are going to sound different than a straight X-pipe with no silencers.
To clarify my original question, I would think JCR non-silenced race pipes would sound similar to the Soul system with no resonator given the similarity in design:
I'm coming from a Dundon Crack Pipe so drone is of no concern Trying to find the most extreme setup possible
The Fabspeed I mention doesn't have mufflers, just has resonators/hemholdz chambers. The JCR one I mention is the valved race pipe. A fully straight through exhaust doesn't always mean it will sound the highest pitch, it needs to have proper tuning/balance. I heard a JCR race pipe on a GT4 and it sounded louder but the JCR valved silenced race pipe actually sounded higher pitch/cleaner(less loud though) on a different GT4. No one in America has ordered the normal titanium race pipe from JCR for the 4RS yet. The Soul exhausts do not sound "clean" to me on any of the videos I have seen. If you want the loudest though then yes get non resonated OAP's and the titanium JCR race pipe(but maybe the silenced one with the resonators to get a cleaner sound, talk to Jonny about it).
I would add it's always helpful to clarify the design/model of each exhaust in comparisons like these.
Valved systems that have mufflers (like the Fabspeed ones) are going to sound different than a straight X-pipe with no silencers.
To clarify my original question, I would think JCR non-silenced race pipes would sound similar to the Soul system with no resonator given the similarity in design:
I'm coming from a Dundon Crack Pipe so drone is of no concern Trying to find the most extreme setup possible
I have the soul resonated race set up on my 4RS - it’s very loud on the throttle but pretty manageable with normal driving. Drone is subjective but by comparison to my Soul race exhaust on my GT4 the drone on the 4RS is pretty much nonexistent.
01-17-2024, 08:10 AM
Trying to find the most extreme setup possible
