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Another JoyRyde

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

Growing up SyTy

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

Hemmings Muscle Machines

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

Car Fix on Velocity

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

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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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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

The Great Typhoon Debate – 92 vs 93.

The Great Typhoon Debate – 92 vs 93.

General 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

Donut Media – GMC SyTy Review

Donut Media – GMC SyTy Review

SyTy News Nov 2, 2019 1

ISTR Instagram

1992 GMC Sonoma GT 628 Owner: Shane K. 📍Califor

1992 GMC Sonoma GT 628
Owner: Shane K.
📍California

💎 So minty. So fresh. So much need.

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

1993 GMC Typhoon Owner: Joe Davis 📍Minnesota #

1993 GMC Typhoon
Owner: Joe Davis
📍Minnesota

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

1992 GMC Typhoon Owner: Mike Renz @renzfab #sytyr

1992 GMC Typhoon
Owner: Mike Renz @renzfab

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

1992 Sonoma GT 012 Owner: @internationalsytyregist

1992 Sonoma GT 012
Owner: @internationalsytyregistry
📍Florida

Cruising around Daytona International Speedway this weekend!

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

1991 GMC Syclone 357 1993 GMC Typhoon 035 Owner: @

1991 GMC Syclone 357
1993 GMC Typhoon 035
Owner: @socalautopaint
📍California

Who’s getting out for some car shows this weekend?

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

1991 GMC Syclone Owner: Robert Pothorcki @robertpo

1991 GMC Syclone
Owner: Robert Pothorcki @robertpothorcki
📍Sweden

Who says Syclones can’t tow?

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

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