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Has anyone gone over 4,000 miles in the new GT4 or Spyder yet? I wonder how the exhaust sound evolves. On the GTS (T4) the sports exhaust really opened up after 4,000 miles, I had an S that sounded way better but had 8,000 miles when i bought it. When I bought the GTS the exhaust was very muted in comparison, but once over 4,000 miles it really changed and sounds way better now (same as the S). Obviously still a 4T but point being the sound really changed (for the better) and everything 'opened' up once it had been driven some. Just curious if anyone has seen this on the GT4/Spyder before rushing out to get an aftermarket solution from day one (in the US).
Yes I found the exhaust sound changes for the better after about 2000Kms. Definately has more burble sounds now too.
Does anyone get strange engine ting ting sounds under slight accel pedal application? Its less of that now, but still does it.
JC, can you elaborate on Luke's comment @ 3:44 that a ECU remap is required if the GPF is removed from the car? Is this true for Canada/US or only EU?
He's not 100% right there. On cars without OPF monitoring there's zero extra work required. For cars with OPF monitoring, we have a fix
Originally Posted by DocMo
Lovely sound but I am glad I did order the Non Silenced Valved Race Pipe. Can’t wait to receive mine and share how it sounds in real life.
by the way, I am planning to keep the valves unplugged (i.e., open all time). Do you think it will drone?
It won't drone as such as Luke demonstrated in his video above however the exhaust has been developed to be used with the exhaust flaps working as OEM so if you keep them open at all times you'll notice more sound down low. As you might expect.
Originally Posted by VVG
Honestly...in the mod game, the first to the table are rarely the best. Wait for options form Armytrix, Akrapovic and Capristo before you jump. Can't go wrong with Supersprint either and they are available now.
Saved a screen shot of this for future reference
Originally Posted by electron mike
Sounds very good! How about with OPF deletes too?
See below
JC
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Ok, so now we have our own 718 GT4 it's time to play..
Video below of the set up pictured above
JCR TITANIUM SILENCED VALVED RACE PIPE / JCR TITANIUM MEGAPHONE TIPS / JCR PRE PRODUCTION OPF DELETE PIPES
Production spec OPF delete pipes will of course feature heat insulation around the vital areas of the pipe to protect chassis / drivetrain components from excess heat.
Now that sounds more convincing. Very crisp sounding. The stuff I was hearing of your stuff prior were all clips where the OPF was present. That's obviously proving a big handicap to the sound you can get out of this car.
There's a lot going on visually on that piece of jewelry... I can't figure where the valves are located.
Now that sounds more convincing. Very crisp sounding. The stuff I was hearing of your stuff prior were all clips where the OPF was present. That's obviously proving a big handicap to the sound you can get out of this car.
There's a lot going on visually on that piece of jewelry... I can't figure where the valves are located.
Tricky to capture the sound on video. They always sound better in reality.
Valves are hidden in that pic, you can see them just about here
Ok, so now we have our own 718 GT4 it's time to play..
Video below of the set up pictured above
JCR TITANIUM SILENCED VALVED RACE PIPE / JCR TITANIUM MEGAPHONE TIPS / JCR PRE PRODUCTION OPF DELETE PIPES
Production spec OPF delete pipes will of course feature heat insulation around the vital areas of the pipe to protect chassis / drivetrain components from excess heat.
Ok, so now we have our own 718 GT4 it's time to play..
Video below of the set up pictured above
JCR TITANIUM SILENCED VALVED RACE PIPE / JCR TITANIUM MEGAPHONE TIPS / JCR PRE PRODUCTION OPF DELETE PIPES
Production spec OPF delete pipes will of course feature heat insulation around the vital areas of the pipe to protect chassis / drivetrain components from excess heat.
Wow! How much louder would the same setup be with the non-silenced race pipe?
As we divorce the smaller diameter route for the valves closed position properly from the pipe unlike the collector design of the OEM OPF pipe the sound differential with valves open between the silenced and non silenced race pipe will be very marginal. The main difference will be the sound level with valves closed, with the non silenced being louder than the silenced version by around 4dB
Originally Posted by electron mike
Sounds very nasty! In a good way. Pricing for the OPF pipes?
I just wish we could capture the true sound on video, so difficult. It does sound fantastic though, very reminiscent of our GT3 Race Pipe products, albeit at 1000rpm less.
Pricing for the OPF pipes will be set as soon as we have our first full Titanium production set back with us after having the heat shielding added by our partner in Germany, Thermisol.
Originally Posted by DocMo
Sounds and looks fantastic. You’re making me spend too much money JC. When will the OPF delete pipes be ready for ordering and shipping?
Glad you like it! Anticipating they will be ready to order in a couple of weeks time
As we divorce the smaller diameter route for the valves closed position properly from the pipe unlike the collector design of the OEM OPF pipe the sound differential with valves open between the silenced and non silenced race pipe will be very marginal
Um...whut?
I see the word "divorce" in there, so I'll just assume that means that this is going to be expensive.
For those that haven't been following our 718 GT4/Spyder/GTS development thread, please feel free to follow the link below and catch up on what we've accomplished thus far and future plans. Street headers, competition headers, competition over axle pipes, race exhausts, valved exhaust systems, and a flurry of exhaust tip options are in the works and some are available for preorder now. Most recently we took our race exhaust out for a spin, which is featured in the video below. I appreciate your consideration and have enjoyed following this thread.
Jonny, great work on your product line and keep on pushing the platform my friend!
06-22-2020, 09:46 PM
That got me haha!