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International SyTy Registry

GMC Syclone, Typhoon, & Sonoma GT History and Data

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Another JoyRyde

Member Feature Sep 11, 2019 1

We’ve featured Tom Joy’s LSX iron block truck here...

Growing up SyTy

Member Feature Aug 31, 2017 7

For most car and truck enthusiasts, speed and power...

Hemmings Muscle Machines

General Jun 25, 2017 1

In the July 2017 issue of Hemmings Muscle Machines...

Car Fix on Velocity

General Mar 18, 2017 0

Car Fix is a show on Velocity TV hosted by Lou...

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4staff
picks

Another JoyRyde

Member Feature Sep 11, 2019 1

We’ve featured Tom Joy’s LSX iron block truck here...

Growing up SyTy

Member Feature Aug 31, 2017 7

For most car and truck enthusiasts, speed and power...

Hemmings Muscle Machines

General Jun 25, 2017 1

In the July 2017 issue of Hemmings Muscle Machines...

Car Fix on Velocity

General Mar 18, 2017 0

Car Fix is a show on Velocity TV hosted by Lou...

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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.

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92 Sonoma GT Info Page

92 Sonoma GT Info Page

General Jan 3, 2021 0

Forza 4 SyTy Returns

Forza 4 SyTy Returns

General Oct 27, 2020 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 370 Owner: Michael Caffrey @mcint

1991 GMC Syclone 370
Owner: Michael Caffrey @mcinthemc1

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

1992 GMC Typhoon 298 Owner: Freddy @theresendez #

1992 GMC Typhoon 298
Owner: Freddy @theresendez

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

1992 GMC Typhoon #sytyregistry #internationalsyty

1992 GMC Typhoon

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

It’s 1992 and you decide to take a trip over to

It’s 1992 and you decide to take a trip over to the local GMC dealer....

“I’ll take the black one....”

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

1991 GMC Syclone Owner: Andy Katz @katznandy #syt

1991 GMC Syclone
Owner: Andy Katz @katznandy

#sytyregistry #internationalsytyregistry #ISTR #gmc #gmctrucks #gmcsyclone #gmctyphoon #syclone #typhoon #sonomagt #syty #sytysogt #PAS #fancysonoma #fancyjimmy #sportmachines #turbo #turbocharged #boost #theofficialsyty #redtruck #1991 #turbotruck #gmcnation #sonoma #sporttruck #alltheboost #magnesiumrims

1992 Sonoma GT
Owner: Tom Mandrov @sportmachines
📍Florida

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

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International SyTy Registry 2016

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