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Bill Alsup’s Syclone for sale May 26, 2022
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Syclone Challenge May 4, 2021
1991 Syclone Walk-around Video February 4, 2021
Forza 4 SyTy Returns October 27, 2020
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LSR Syclone – News Flash! July 17, 2020
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Bill Alsup’s Syclone for sale

SyTy News May 26, 2022 0

Former Indy driver and CART Rookie of the Year,...

Hotwheels Syclone Conversion

SyTy News Nov 7, 2021 0

With the popularity of the Hotwheels Syclone release...

Revelations with Jason Cammisa

Member Feature Sep 25, 2021 0

With the popularity of today’s internet influencers, it comes...

Syclone Challenge

General May 4, 2021 0

With the launch of the GMC Syclone in 1991,...

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4staff
picks

Bill Alsup’s Syclone for sale

SyTy News May 26, 2022 0

Former Indy driver and CART Rookie of the Year,...

Hotwheels Syclone Conversion

SyTy News Nov 7, 2021 0

With the popularity of the Hotwheels Syclone release...

Revelations with Jason Cammisa

Member Feature Sep 25, 2021 0

With the popularity of today’s internet influencers, it comes...

Syclone Challenge

General May 4, 2021 0

With the launch of the GMC Syclone in 1991,...

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SyTys@Carlisle 2020 Review

SyTys@Carlisle 2020 Review

Events General SyTy News August 22, 2020 0

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SyTys@Carlisle 2022

Days to SyTys@Carlisle 2022August 6, 2022

40 days to go.

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Bill Alsup’s Syclone for sale

Bill Alsup’s Syclone for sale

SyTy News May 26, 2022 0

The Great Typhoon Debate – 92 vs 93.

The Great Typhoon Debate – 92 vs 93.

SyTy Tech Dec 30, 2021 0

Hotwheels Syclone Conversion

Hotwheels Syclone Conversion

SyTy News Nov 7, 2021 0

Another JoyRyde

Another JoyRyde

Member Feature Sep 11, 2019 1

LSR Syclone – News Flash!

LSR Syclone – News Flash!

SyTy News Jul 17, 2020 1

Hemmings Muscle Machines

Hemmings Muscle Machines

General Jun 25, 2017 1

ISTR Facebook Page

ISTR Facebook Page

About ISTR

Welcome to the home of the International Syclone Typhoon Registry (ISTR), the only digital magazine and source that is aimed specifically towards the information and history of the GMC Syclone, Typhoon, and Sonoma GT! This site was built to educate, inform, and share knowledge based around the famed Sportmachine trucks.

ISTR was built to take data, information and latest news stories to be able to collectively share it amongst owners and enthusiasts.

Recent Comments

Bill Alsup’s Syclone for sale

Bill Alsup’s Syclone for sale

SyTy News May 26, 2022 0

The Great Typhoon Debate – 92 vs 93.

The Great Typhoon Debate – 92 vs 93.

SyTy Tech Dec 30, 2021 0

Another JoyRyde

Another JoyRyde

Member Feature Sep 11, 2019 1

LSR Syclone – News Flash!

LSR Syclone – News Flash!

SyTy News Jul 17, 2020 1

ISTR Instagram

1991 GMC Syclone 271 Owner: Joe Fallon @truckguyjo

1991 GMC Syclone 271
Owner: Joe Fallon @truckguyjoe

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #alltheboost #minitruck

1992 GMC Typhoon Owner: Mark Feuillerat @slostorm9

1992 GMC Typhoon
Owner: Mark Feuillerat @slostorm92
📍Wisconsin

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #alltheboost #minitruck

1992 GMC Sonoma GT Owner: Nick Romash @nickromash

1992 GMC Sonoma GT
Owner: Nick Romash @nickromash

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #alltheboost #minitruck

1991 GMC Syclone Owner: @chris_car_pics 📍Penns

1991 GMC Syclone
Owner: @chris_car_pics
📍Pennsylvania

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #alltheboost #minitruck

1993 GMC Typhoon 1206 Owner: Travis Gerulski @hunt

1993 GMC Typhoon 1206
Owner: Travis Gerulski @huntwithtrap

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #alltheboost #minitruck

Happy Fathers Day to all the SyTy Dads out there!

Happy Fathers Day to all the SyTy Dads out there!

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #alltheboost #minitruck

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