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The modifications continue - Manthey coilovers incoming...

In my opinion, the coilovers are where you should spend your money rather than wheels which I guess is why I've done just that! I think improved suspension is the biggest bang for your buck, aside from driver training, the rest is just fine tuning. I personally don't see the benefit of the full MR kit unless you're only keeping the car a short time and want to resell it through the OPC network. It won't have to be returned to standard and is an official Porsche product.

OPC maintenance doesn't have to be astronomical. Mine isn't that much more than an Indy, they do great work, and I have Porsche stamps in the book, access to all the latest tech updates and can keep the extended warranty. For mods and minor repairs I use an Indy so you can pick and choose how to get the best value for money.

Roll on 4pm anyway, so I can dash away from work to pick my car up šŸ˜
 
The biggest benefit of the MR Kit for 718 GT4 is from the coilovers, but it was designed to work as a system and the additional adjustment of the rear wing and the gurney flap do also make a difference .... There IS a downforce effect and associated drag penalty down a long straight, but you make that up with more stability in the corners and being able to get on the throttle even earlier on exit. Some may downplay it but I guess to being able to pick up nuances like this requires a decent amount of seat time and experimentation, and testing of the boundaries.

That said... as much as I have loved having the full kit on my 718 GT4 since 2022... I would not be paying the new OPC prices to get it.
Glad I got it when I did. I paid the same for the full kit, that you now have to for just the coilovers alone from Tequipment.

16c3c657-387f-4a2e-bdf8-dd419162c9dd.JPG
I have made an enquiry, out of pure interest, as to how much it would be to have my existing kit re-certified to the new kit standard (from what I can see: *New Porsche branded Top hats , *GT4 RS underbody aero - which I already have, *and new black coilover control knobs).
I have no intention of doing it, but if I get an answer I'll let you know.
 
That'd be interesting T, let us know!

I'm sure you're right about the complete MR aero package, but for me it's not worth the extra cost as it only comes with the full kit. Using current Tequipment pricing:

Full kit Ā£23.5k

Coilovers Ā£16k
Intake grilles Ā£500
Braided brake lines Ā£500
Brake pads Ā£1k

So the aero, sill covers, tow straps and decals costs you Ā£5.5k.

The separate parts you can get are Ā£18k in total, which is bonkers. I don't have the intake grilles but have the Manthey coilovers, and brake lines, non-Manthey upgraded pads, the Porsche GT4RS underbody aero and some unofficial decals. The parts cost was under Ā£8.5k.

My driving skills are such that I'll stick with my budget version and saving of Ā£15k(!!!) :oops:
 
TBF... I'm ignoring the cosmetic stuff.. tow straps, sill covers, decals.

Only bits you are missing are grilles which you can get for 200quid from Manthey direct.
Then you just need rear aero. ( and lovely yellow stitched MR headrests) - Pm me for special price!. :ROFLMAO:
 
I'll maybe take a look at getting the grilles if I ever get the gravel rash on my sill covers and intake covers repainted šŸ¤£
 
They are for stopping track rubber and other detritus (leafs, hay, cigerette butts, stones) from entering the intakes opening and then getting stuck in the fans... which will cause a horrible noise and an error light, warning of potential engine damage from over-heating.
No brainer thing to do on any Cayman/Boxster tbh.
 
In my opinion, the coilovers are where you should spend your money rather than wheels
Click to expand...
In terms of performance I'd agree with you but I'm not sure I want a harder ride. Less overall and rotational weight on the wheels is still welcome - I wanted a second set of rims with PS4S's (though really I should put those on the OEM rims and the Cup 2's on the MR rims). Plus they also just look really good and make the car look a bit more unique / stand out.

Coilovers Ā£16k
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That's hella expensive.. MR coilovers from RPM Technik are just under Ā£7k. Positive I can order them and have them installed for under 10k but I agree with you on the driving skills part as well - all I'd get at this point is frustrated from the harder ride to breakfast runs :LOL:
 
If you order from RPM they will probably honour the older prices for a little while.

The ride is actually better and more composed than standard car IMO, but this is subjective... I want my sports car to feel like a sports car. Not harsh but has control and response. I found the standard 718 GT4 ride to be quite soft (too soft for a lot of track work anyway) and felt like a series car... not like a GT car really should.
Spring rate is only raised on the front to 60N/mm up from 45N/mm. The rear remains the same at 80N/mm just that you are getting a far better damper. The key thing is that the compression and rebound is adjustable so you can actually back it all the way out to make it super plush or soft for the road if you like.... but maybe at the loss of some response.

Anyway you pays your money and you take your choice.
 
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I think pricing of the coilovers from non-OPCs may not reflect what's actually on websites currently. They're likely to be ordered on demand, I doubt they're setting on a shelf in stock, so if JZM/RPM contact Manthey for supply they'd get the current price. It would be interesting to know what that is, either by asking JZM/RPM for a quote or contacting Manthey directly to see what their price is.
 
@TDT
The issue though is that I don't know that I'd be having Ā£50-60K more fun on a track day, than I would be having in my 718 MR....šŸ¤”, and if I'm getting upset with 4RS chassis, I'll be spending more to get it tamed again. Sounds like I'm chasing my tail.
Click to expand...

A bit late to the party and rereading all of the old posts in this thread but maybe this will help your GT4 RS decision

My personal thoughts are I'm just trying to get my car setup the way I want for my enjoyment. No intentions of ever selling it. I want to avoid getting into the habit of chasing the next best car
 
Cheers, I've managed to resolve that little conundrum.
Best/Better is quite subjective also.
 
A quick update...

I picked the car up around 5pm tonight and have only driven it home, unfortunately, but it was a good test of slower speeds on badly surfaced roads and higher speeds around sweeping motorway exits. Ride is a touch firmer than OEM, only slightly, but the damping control is on another level. The car feels totally at one with the road, flowing with the surface. As standard it often felt a vague and floaty, not so any more. So far so good!

Cambers are a bit higher than those TDT posted, and there's a touch of toe-in at the front and a bit less than I had previously in the rear. Ride height is lower, naturally.

I'll see if I can get out for a longer run tomorrow to really check it out, but the weather forecast is terrible and it's also the Le Mans 24hr race. Bring on July's track days for a proper test... šŸ˜
 

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Very good. Once the oil in the dampers get a bit warm, the ride really settles down. And then also once the springs have settled in and have some miles on them.
Congrats and enjoy next part of the journey.
Youā€™ll be wanting more power soon. šŸ˜Ž, although this engine even in 100% stock form is a peach when itā€™s singing, especially when youā€™re hauling down on a 991 GT3.
 
I totally agree, I think it's a really great engine and I have no plans to mess with it. If you want faster, you're better off buying a GT4RS or GT3 IMHO.
 
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A final road-only update on the coilovers for anyone still interested šŸ¤£

I managed to get out for a good run on Sunday morning on one of my usual routes that I know well. There were a few too many cyclists and people moving horses about in trailers unfortunately, but I did get a decent impression of the car's new road manners.

The ride is definitely a tad firmer and on really bad roads it's quite jiggly, but the standard car is too. It's a little more jolting than bouncy now I guess, but no real issue it's not worse than it was before just a bit different.

Speed bumps are a real pain. They were an issue before, but as the car is now around 20mm+ lower you have to be super aware of them. I was in a queue of traffic at one point and got caught out by one I hadn't seen prompting a loud plastic scrape, which I assume was the air deflector by the front nearside wheel. I'm treating them as disposable, as they were before, so again no issue as they're cheap plastic parts. I have a set of RS underbody aero to fit once the standard ones are trashed or knocked off somewhere!

Most importantly the car now feels really solid on the road, especially in higher speed sweepers. Very confidence inspiring. At one point, on a dual carriageway slip road between two motorways, it was just far too tempting to sweep round the outside of someone in the inside lane at a much higher speed than they were travelling. The car just lapped it up and the grip was clearly there. As standard, the car always felt a little spongy/soft/vague in those situations - not any more.

So far, for what I was looking for, they definitely seem to have been worth having done. I can see how they wouldn't be for everyone, and certainly not for a daily unless you jack the ride height back up (which then seems a bit pointless to me), but I'm really looking forward to Silverstone and Oulton Park next month to give them a proper test. Oulton in particular, as I know the track really well and love it :cool:
 
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Twinfan said:
No updates on my car as yet, the Service Manager I deal with is out of office for a few days so I'll catch up with him early next week.

However, it seems the Manthey Kit for the regular GT4 has now been approved as an offical Porsche Tequipment upgrade:


For the princely sum of Ā£23,644.97! šŸ«£

The coilovers are available separately:


For a punchy Ā£15,889.96!!!!! :oops::oops::oops: Currently twice the price of RPM Technik and JZM Porsche, or buying them yourself direct, although I suspect those prices are going to shoot up any day now.

It seems I may have got in just in time...
Click to expand...

Just to close the loop on this for anyone's future reference, a mate of mine enquired about a set of coilovers from RPM this week. He's been told that since June 6th (when the 718 GT4 Manthey kit and associated parts were Porsche approved and thus available via Tequipment) they can no longer supply them to the UK and they have to be bought from an OPC. For Ā£16k :(

The 981 versions can still be bought independently but I don't know how different they are to the 718 version. I suspect the PASM elimination module is different, but you might be able to fit them to a 718 and then code out the PASM system via remap? Caveat emptor I guess.

The other option would be to buy the non-Manthey KW shocks for Ā£8k, which now seems like the sensible option but is most definitely a "modification" rather than an "optional extra":

https://www.kwsuspensions.co.uk/sho...LFDS2NTes*TBA../57/Track_Performance/39771288
 
The price revision was always going to happen. When I learned that the 718 GT4 kit would go official in a conversations in 2022 and 2023 with both JZM and Ollie P @ RPM - I was very glad to have already done it - and told everyone that I thought might have been interested to get it done ASAP - before this happened. At the time Ollie was very surprise that more GT4 Trackday driver weren't taking the plunge, now its probably prohibitive.

Some quick maths shows that to replicate my car would probably now cost donor GT4 + Ā£42K for full MR kit and Surface Transforms... so if someone hasn't already done it... they likely never will.
Must say - that likely puts me in good stead on the resale market some day... I can offer a sizeable discount on the fully built car or just on the parts and still do well.

Who says Porsche doesn't look after customers... :LOL:

As for alternatives... Ohlins and MCS make good kits for GT4 - arguably actually higher quality product - however the MR custom valving based upon extensive experience at the N'ring and close collaboration with Porsche put them at the top of the list, for an N'ring focused setup.
SSR also have a custom KW offering, working on the 7 poster rig and experience on the N'ring also. Their damper units are almost identical to the MR kit - even with a green spring lol. So that would work also.

Couple other options also remain to somewhat swerve or mitigate some of the UK MR tax if that is must.
 
Thanks very much for the write up setting out your experience of going through this process.

I realise that this discussion is GT4 / track focussed, but if you don't mind I would appreciate your views on the following:.

A lot of cars, 981's in particular, are now reaching higher mileages. My own PASM equipped 981 GTS has 70,000 and rising. Used for fast (typically moorland) roads and the very occasional track outing. It has reached the stage where it feels wallowy and loose, especially compared to the GR Yaris that is our alternative vehicle, so I think a refresh is due. I could go Bilstein but I have been hearing very good things about Tractive products. Any opinions or other ideas welcomed.

Thanks
 
Hi John,

I guess it depends what you're looking for and how much you want to spend? If you were happy with the car when it was younger, a basic Bilstein refresh (you can send off your existing shocks for a refurb I think) should do the trick for a smaller outlay than a complete new suspension setup.

I wonder if you could get the (optional on the GTS when new) Sports Chassis fitted? It seems surprisingly affordable from Porsche at Ā£1355 for the parts, and maybe there's a way to get around the fact your car has PASM fitted - some sort of ECU coding to switch it off?

 
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