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Porsche 911 930 Custom T-Shirt | Yoshida Specials Air-Cooled Turbo Build Japanese Custom 911 Tee
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Size chart
All purchases are final sale. Exchanges/refunds will not be given for buyer error or remorse. Below, we show you how to measure yourself and the sizes based on apparel type. Pro tip! Measure one of your similar items at home and compare it with the measurements you see in this guide.
Product measurements may vary by up to 2" (5 cm).

Unisex T-shirts |
Length (in-cm) | Width (in-cm) |
|
Small |
28 - 71.1 | 18 - 45.7 |
|
Medium |
29 - 73.7 | 20 - 50.8 |
|
Large |
30 - 76.2 | 22 - 55.9 |
|
X Large |
31 - 78.7 | 24 - 61 |
|
2X Large |
32 - 81.3 | 26 - 66 |
|
3X Large |
33 - 83.8 | 28 - 71.1 |
Button-Up Shirts |
Width (in) | Length (in) | Sleeve (in) |
| 2XS | 20 ½ | 30 ⅛ | 10 ¼ |
| XS | 21 ¼ | 30 ½ | 10 ¼ |
| Small | 22 | 30 ⅞ | 10 ¼ |
| Medium | 22 ¾ | 31 ¼ | 10 ¼ |
| Large | 24 ⅜ | 32 ⅛ | 10 ⅜ |
| XL | 26 | 32 ⅞ | 10 ⅝ |
| 2XL | 27 ⅝ | 33 ¾ | 10 ¾ |
| 3XL | 29 ⅛ | 35 | 11 |
| 4XL | 30 ¾ | 35 ¾ | 11 ¼ |
| 5XL | 32 ¼ | 36 ⅝ | 11 ⅜ |
| 6XL | 33 ⅞ | 37 ⅜ | 11 ⅝ |
| Polo Shirts (Slim Fit) | Length (in) | Chest width (in) |
| XS | 27 ¾ | 19 |
| S | 28 ¼ | 19 ¾ |
| M | 28 ½ | 20 ½ |
| L | 29 | 21 ¼ |
| XL | 29 ¼ | 22 |
| 2XL | 29 ¾ | 22 ¾ |
| 3XL | 30 ¼ | 23 ½ |
Hoodies |
Length (in) | Width (in) |
| Small | 27 | 20 |
| Medium | 28 | 21 |
| Large | 29 | 23 |
| XL | 30 | 25 |
| 2XL | 31 | 26 1/2 |
| 3XL | 32 | 28 |
Raglan shirts |
Length (in) | Width (in) |
| XS | 26 | 16 ½ |
| Small | 28 | 18 |
| Medium | 29 | 20 |
| Large | 30 | 22 |
| XL | 31 | 24 |
| 2XL | 32 | 26 |
Women's T-Shirts |
SHIRT WIDTH | SHIRT LENGTH | US SIZES | EU SIZE | UK SIZE |
| Small | 18.5 | 25.25 | 6-8 | 36-38 | 10-12 |
| Medium | 20 | 26 | 10-12 | 40-42 | 14-16 |
| Large | 22 | 26.75 | 14-16 | 44-46 | 18-20 |
| XL | 24 | 27.5 | 18-20 | 48-50 | 22-24 |
| 2XL | 26 | 28.25 | 22-24 | 52-54 | 26-28 |
| 3XL | 28 | 29 | 26-28 | 56-58 | 30-32 |
Porsche 911 930 Custom T-Shirt | Yoshida Specials Air-Cooled Turbo Build Japanese Custom 911 Tee | Gift for Porsche Fans & Air-Cooled Enthusiasts
The Yoshida Specials 930 is the kind of build that defines what custom Japanese Porsche culture is all about. The 930 — Porsche's first turbocharged production 911, built from 1975 to 1989 — is already an absolute icon: the original "widow-maker," with its turbocharged flat-six air-cooled engine slung out behind the rear axle, that aggressive whale-tail rear spoiler perched on the deck lid, the iconic flared rear arches, and a driving experience that demanded full respect from anyone who sat in it.
Now hand it over to a serious one-off Japanese custom builder, and you get something genuinely special: deepened wheel arches with proper fitment, period-correct or modernized aero pieces, custom interior trim, freshened-up flat-six rebuilt to specification, color spec chosen with intention, and that unmistakably Japanese attention to detail in every panel gap, every shutline, every component finish. Japan's air-cooled Porsche scene is one of the most respected in the world — between RWB, Idlers Club, Magnus Walker-influenced Outlaw builds, and serious one-off shop projects, Japanese 911 culture treats the 930 as one of the most worthy canvases for personal expression.
Custom paint specs, modernized brakes hidden behind period wheels, fender-mount mirrors, ducktail or whaletail decisions made with intention — every choice on a Yoshida Specials build matters. Wear the air-cooled 911 in its most personal form.
Perfect for 930 Turbo collectors, air-cooled 911 obsessives, custom Japanese Porsche scene fans, one-off shop build appreciators, RWB and Idlers Club crossover enthusiasts, vintage Porsche restorers, fender-mount mirror diehards, whaletail spoiler purists, and anyone who knows the air-cooled 911 is the most personal canvas in all of Porsche culture. A perfect gift for the friend whose dream 911 isn't a stock concours queen — it's a custom one-off that reflects exactly their taste and intention.
This tee is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for all — at the meet, at the show, or anywhere a properly built one-off air-cooled 911 deserves the second look it's about to get.
- 100% combed and ring-spun cotton (Heather colors contain polyester)
- Fabric weight: 4.2 oz/yd² (142 g/m²)
- Pre-shrunk fabric
- Side-seamed construction
- Shoulder-to-shoulder taping
- Blank product sourced from Guatemala, Nicaragua, Mexico, Honduras, or the US
Size guide
| LENGTH (inches) | WIDTH (inches) | CHEST (inches) | |
| S | 28 | 18 | 34-37 |
| M | 29 | 20 | 38-41 |
| L | 30 | 22 | 42-45 |
| XL | 31 | 24 | 46-49 |
| 2XL | 32 | 26 | 50-53 |
| LENGTH (cm) | WIDTH (cm) | CHEST (cm) | |
| S | 71.1 | 45.7 | 86.4-94 |
| M | 73.7 | 50.8 | 96.5-104.1 |
| L | 76.2 | 55.9 | 106.7-114.3 |
| XL | 78.7 | 61 | 116.8-124.5 |
| 2XL | 81.3 | 66 | 127-134.6 |
All sales are final unless the item is defective, damaged, or the wrong one was sent.
It is very important you order the right size - exchanges/refunds will not be given for buyer error or remorse. Read more here.
Adding product to your cart
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
This website is encrypted. We take your security very seriously. All transactions powered by Shopify.
Rates are approximations. Exact rates will be provided at checkout.
Shipping estimator










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