2026 GT4 Composites carbon fiber parts for sale thread (ex Mile End)

[Gt4]

May I ask why the name change? Are the parts still made by miles end composite? Or did you find another person?

If the name is now your name, are you making the parts now?

All parts were/are always made by JC, Mile End or GT4 Composites. JC has his own business name anyway.

Mile End was made by Derek, he is a member here, just not as active as M3forum.net days. He took the name Mile End to sale parts. But just before Covid, he has been super busy with work and family and had no more time for Mile End. I helped JC and Derek in the past to do test fit of previous pre-production parts on my M3s.

During Covid, I asked JC to do CSL carbon fiber parts for me and he asked me if I was interested to list parts for sale and do test fit on new parts.

Now that I am selling parts for JC and we do everything in carbon fiber instead of fiberglass, I just used the name GT4 Composites. So if Derek wants to use Mile End in the future, it's still available. I have plan to do more stuff under GT4 Composites.

Mile End was basically just fiberglass CSL bumper and CF CSL diffusers. They had huge sucess and a lot of parts were sold. Price were pre-covid and demand was huge, a lot more than capacity to produce. And it made unhappy potential customer who had to wait.

GT4 Composites parts are all CF now and we work to get better fitment as close to perfection for hand built parts. Prices might be too high for some. And it's ok. We aren't looking to expand or do more volume.

[bigjae46]

Should consider offering some of those parts in a spread tow finish. I think that is the next rage in CF now that forged carbon is dying out. Something unique and it is what you see on the F1 car halos. Ferrari uses a 2x2 twill spread tow.

[Gt4]

Should consider offering some of those parts in a spread tow finish. I think that is the next rage in CF now that forged carbon is dying out. Something unique and it is what you see on the F1 car halos. Ferrari uses a 2x2 twill spread tow.

1 member asked for forged carbon in the past and we made his parts in forged carbon.

Otherwise, most guys want same finish as OEM CSL. No one asked spread tow so far.

[x Spades x]

1 member asked for forged carbon in the past and we made his parts in forged carbon.

Otherwise, most guys want same finish as OEM CSL. No one asked spread tow so far.

Oem is reinforced plastic, with CF in the middle right?
would that get the price down a little? This economy is crazy and salaries arent coming close to matching. 😞

[Gt4]

Oem is reinforced plastic, with CF in the middle right?
would that get the price down a little? This economy is crazy and salaries arent coming close to matching. 😞

By same finish I meant 1x1 front splitters. Peoples wants replica parts with similar finish as factory CSL (1x1 vs 2x2).

[bigjae46]

Oem is reinforced plastic, with CF in the middle right?
would that get the price down a little? This economy is crazy and salaries arent coming close to matching. 😞

By plastic - they mean epoxy.

The OEM E92 M3 roof is a 1x1 3k outer layer with a biaxial, some sort of white core material, biaxial and a spread tow on the bottom. There was one more layer that I couldn't make out what it was. That would double the price to produce in both materials and labor to produce a 6 layer composite.

[Gt4]

I have 1 CSL bumper and 1 CSL diffuser ready to go. Can be ship this week, no delay!

I can do $4000usd shipping included if you take both.