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Porsche Crest Logo
Porsche Club of America Logo in full color

Independently Serving

the Greater Miami

Porsche Community

Since 1979


GP AutoWerks is a Miami-based Porsche service,

repair, rebuild & PPI shop with 30+ years Porsche car care experience.  From general maintenance, to factory-spec or custom engine and transmission rebuilds,"GP" offers

comprehensive Porsche mechanical care and PPI for

classic & contemporary Porsche sport cars and SUVs.

silver miami porsche driving at high speed

The "GP" of GP AutoWerks, George Perdomo.

Your GP AutoWerks advantages:


  • Dedicated Porsche-only shop.

  • You know who's working on your Porsche: George Perdomo.

  • You know your technician's qualifications.

  • NO service-manager --- Discussion about your Porsche is always with the one servicing it.

  • Project updates keep to you informed if you choose.

  • Small shop efficiency. 

  • On budget delivery.

  • 30+ years Porsche mechanical experience---street & track.

If this works for you, you're invited to test drive a conversation with GP today.

305-588-0874. English & Spanish spoken fluently.

What's in this website


In-depth content covering GP AutoWerks Miami Porsche service, repair, rebuild and PPI. Under "Services," you'll find these individual sections to look through:

Porsche Rebuild 

Porsche Handling

Porsche Body 

Porsche Interior

Porsche Resto & Mod

Porsche PPI

You'll also find Porsche educational information in the side bars (later in site.) There's also a "Porsche History" section. A few Porsche videos can also be found courtesy Porsche NA. There's more...

Smaller photos in this website you can click-to-enlarge.

Captions will also appear.

dirty porsche engine just removed from chassis by miami porsche engine rebuild specialist gp autowerks
porsche engine heading for rebuild has heads removed by miami porsche engine rebuild specialist gp autowerks
clean cylinder seats on porsche engine rebuild by miami porsche engine rebuild specialist gp autowerks
six porsche engine connecting rods laid on tray by miami porsche engine rebuild specialist gp autowerks
clean pistons and cylinders for engine rebuild done by miami porsche engine rebuild specialist gp autowerks
long block porsche engine done by miami porsche engine rebuild specialist gp autowerks
red air shroud installed on rebuilt porsche engine by miami porsche engine rebuild specialist gp autowerks
completed 1979 porsche 930 engine and transmission rebuild by GP autowerks
1979 Porsche 930 with running engine rebuilt by miami porsche engine rebuild specialist gp autowerks

Any number of attributes affect handling ranging from componentry to adjusting ride height. How far to go with this is a customer's decision with guidance available from GP.

miami porsche owner and customer of gp autowerks car is parked inside body shop with no door or front hood
1980 porsche 911 targa in miami after gp autowerks adjustments

Caution is advised when dealing with any paint & body shop as some shops know & care about removing and returning parts correctly... some don't. More, there may be mechanical damages that can go unseen and so uncorrected under an insurance claim. Be thoughtful when dealing with any paint & body work on your Porsche. 

Porsche Engine & Transmission Rebuild

The Porsche flat format engine---boxer type engine---is unique among car engine's based on two main factors. First, the pistons are horizontally opposed. In affect, one side of pistons is said to be “boxing” the other side (given the pistons moving directly against each other.) Secondly, early model Porsche's were unique on the basis of being air cooled. This distinction arose from Ferdinand Porsche's original weight reduction interests and simplified manufacturing requirements for the initial Porsche racing car... series 356. In 1998, the last of Porsche's air cooled engine-cars were made. The company has since moved from air to water cooling. The last car Porsche produced with air cooling was supposedly purchased by Mr. Jerry Seinfeld.

      While other auto makers crafted engines, transmissions, and chassis for the sake of retail sales, Porsche's beginnings were race-oriented. On this basis, their engines & transmissions were, from the outset, designed and made to be light-weight, powerful, and durable. The focus being to compete and most importantly... win. The first iteration of Ferdinand Porsche's vision was the model 356. To this day, a few of these original 1950 circa Porsches remain on the road. 

       GP AutoWerks offers comprehensive Porsche engine & transmission service, repair & rebuild capabilities. From the simplest tuning of your Porsche's fuel air mixture, oil and filter changing, spark plug replacement, ignition wire replacement, valve adjustment, to checking cylinder sealing efficiency via compression and/or leak-down tests (and from that being able to advise you if the rings, intake or exhaust valves are leaking for any given cylinder), to the complete factory-standard (or better) rebuild of your Porsche engine & transmission... GP can expertly address any need you have in this area. 305-588-0874

To Porsche Engine & Transmission "Rebuild" page.

Porsche Handling

Much of the Porsche experience is about how your car handles. And not to be critical of front engine Porsches, it's the original positioning of the engine and transmission to the car's rear that is at the root of why a Porsche feels & handles---for the most part---as it does. Of course there's much more to consider: geometry, weights & distribution, aerodynamics, suspension, ride height and tires. These are just a few of the ingredients that comprise what creates the handling experience of a rear engine Porsche. On a performance scale, Porsche ranks among the top handling cars ever. This is not coincidence. It comes from Porsche's dedication---from the very beginning---to race and win.

       What do You want in terms of handling from your Porsche? If you're not sure, talk to GP. He'll help you answer this interesting question. If you know, he can help you understand your Porsche's current status and what's required in order to achieve the handling you want---be it for street or race track. See Porsche "Handling" page.

Porsche Body

Porsche body design is like no other---the 911 form being classic. And to think, Porsche once considered replacing the 911-type in their product line with the 928. This decision was based on Porsche's thinking at the time that, with the introduction of the 930, nothing more could be done with the 911 platform. Corporate leadership subsequently changed at Porsche. And so to did the future of the 911 platform---it continued and has become the iconic body form that represents the Porsche brand.

       Correcting body damage from accidents is NOT what GP AutoWerks does. The role GP plays in regard to Porsche body work is two-fold: First, GP serves as a consultant answering questions as to what mechanical damage may have occurred from an accident---unless a body shop is provenly very Porsche-familiar, it is advisable to NOT rely on that body shop's mechanical damage diagnose. GP offers the capability to repair any mechanical damage and will co-ordinate GP shop work with whatever body shop you choose to work with. Secondly, GP AutoWerks is experienced in the alterations that you may want to make to your Porsche's body. Flares, spoilers/wings, etc.---body alterations for either aesthetics and/or performance driving. Within reason, nothing is impossible with your Porsche. It's a matter of creativity, expert engineering and build-ability that you'll find at GP AutoWerks. See Porsche "Body" page.

Porsche Interior

A Porsche interior is one of the finest in the market for a sports car of its' class. Everything is ergonomically designed with today's Porsche interiors keeping pace with features found in most luxury sedans.

       In Miami, the interior topic that raises the most interest is air conditioning. More to the point, AC that delivers cold air from the vents. There's a good deal of AC information available in the "Interior" section.

       If your interior is worn, or not to your liking either aesthetically or in regards to some comfort consideration, GP can help sort that out for you. Bear in mind, GP AutoWerks does not do reupholstering. GP's role---when called for---is to disassemble parts for reupholstering... supervise the reupholstering work if needed/wanted... then reassemble interior parts. You're Porsche interior is then completed both aesthetically and mechanically as it should be. 

        For personal physical considerations that require specific interior adjustments---adjustments that are beyond the scope of the adjust-ability built into your Porsche's controls---GP can answer your needs. Such adjustments may include but not be limited to seat position, seat form, steering column positioning, shifter positioning, seat belts/harnesses, and roll cage structures. Consult with GP to determine what degree these areas of your Porsche's interior can be modified to suit you. Porsche "Interior" 

Porsche Resto & Mod / Restoration & Modification

Resto (restoration) is restoring a Porsche to some level of its original form and condition. This may encompass part or all of a car. The work GP does in regard to resto is NOT an every nut & bolt resto---there are specialists for this. GP's resto work is system (area) focused. Examples are the electrical system, suspension, steering, AC. Resto work is commonly done when a prior owner has made mods that are currently not wanted. For more information on GP capabilities concerning the resto of your Porsche, see the "Resto" section.

      A Porsche Mod refers to alterations from a car's stock configuration to non-stock. This takes things in the opposite direction of resto. Mods can be for performance, experimentation, or aesthetic reasons. In this realm, GP offers consultation, creative, physical production, installation, and testing / evaluation capabilities as a customer wants. If you have a vision you want to see come to life on or in your Porsche, GP can help you from wasting time & money on directions that won't work, and help lead you in the paths that will. See the "Mod" section to know more.

Porsche PPI

PPI means "Pre-Purchase Inspection." It refers to the professional inspection made of a given Porsche for the purpose of knowing what condition that car is in prior to purchase. And so, knowing what costs may be anticipated to achieve the condition level a potential buyer has in mind for the car. Bottom line: PPI enables a Porsche buyer to make an informed decision concerning the potential purchase of a pre-owned Porsche. Visit the Porsche "PPI" page for more info.

GP Inspecting porsche rod bearing play
GP estimating suspension modifications on Porsche m491
porsche digital diagnostic scan in progress
George Perdomo owner of GP Autowerks sporting a smile and serious tan

Left to right: Porsche engine rebuild in progress. Here, play between rods and crankshaft is being inspected. With many years of experience, this inspection can be done by hand. Doing so determines if splitting the case is necessary to replace bearings and for further inspection. Splitting the case was not needed here saving money for the owner and returning his car to him sooner. Were the owner not interested in this approach, and were the car not driven as it was, the case would have been split by default.

Digital diagnostic test in process on late model Porsche. This serves to pin point where a certain issue may be eliminating step-by-step manual diagnostics.

Suspension modifications are being estimated for an M491, Porsche's "turbo-look" model that excludes a turbo.

GP---sporting a hefty tan---is caught in a candid moment at the prior shop's location on 45th street. A few more wrinkles have been added to the facade but the smile and dedication remain the same. 

Photo gallery


Snapshots while work is being performed on GP customer cars can be seen here. Each photo is captioned so you'll know what you're looking at. Tips on Porsche car care are included. See "Photo Gallery."

Oil change


Best care you can provide your Porsche's engine & transmission is planned oil & filter changes. Oil is literally the cushion that prevents moving parts from wearing out. The cleaner this cushion of oil is the healthier your engine and transmission will run. You'll find standard, best-practice, and short-run service intervals for your particular oil type in "Oil Change."

Short tale of a long run


GP's mechanical career began in the early seventies. Was mid eighties when he became a dedicated Porsche mechanic. Looking back, and by most professional standards, that's a long run... and it continues. The vast Porsche mechanical knowledge-base GP has encompasses both street and racing. You can learn more about what makes GP a Master Porsche technician / mechanic here, "GP Credentials."


What you get


Having your Porsche serviced or repaired to factory or better standards, on budget, and with no BS... that's what you'll get when entrusting your Porsche sports car to GP AutoWerks. Below are preliminary notes on the services available to you at GP AutoWerks. On the "Services" page, you'll be able to select the topic that specifically interests you. 

miami porsche interior being repaired and restored at gp autowerks
Miami Porsche interior after being completed at gp autowerks

Porsche interior is apart for multiple repairs and restoration. Seating is rebuilt and recovered in full grain leather as is the steering wheel. New dash and headliner are going in. All controls, instruments, and lighting are returned to working order. A stock look has been maintained throughout this Porsche according to the owner's requirement. Exception is Griffith's AC vents being installed below the dash for improved air flow. Photos are (top) while work is in progress and of course after completion.

gp autowerks customer's custom porsche piston reference
Small LED display screen showing Porsche logo on black background at miami porsche shop of gp autowerks
Scale model of Porsche engine lid air intake seen in profile view is modification to fit car model 911 shown at miami porsche shop gp autowerks
miami gp autowerks making porsche suspension repair
GP autowerks customers lowered 1974 porsche carreraPorsche

Customer ideas consulted on with GP. Clockwise from top left: Reduced weight pistons, digital AC control, air intake, exposed twin turbos. By discussing ideas with GP, insights are gained that help avoid directions that will be problematic in order to steer towards solutions that will work.

Custom twin turbo installation on a porsche
porsche ppi bottom panels that need to be removed.jpg
porsche ppi looking at brake rotors
Miami porsche carrera 4 being lifted for porsche ppi
porsche ppi finds too high engine temperature
porsche ppi looking at front suspension that makes creeking noise
porsche ppi finds loose connections on engine
porsche ppi finds front hood bracket damaged
porsche ppi wheel sensors are correctly connected
porsche ppi finds slight front end damage by inspecting frunk
porsche ppi finds non stock electrical fuse panel in frunk

When you invest in an expert Porsche PPI, you're getting insight you'll not have otherwise allowing for an appropriate valuation of the car. Given determined conditions and sellers lowest price, you may conclude the car being unreasonable for your plans. Or, the car can prove to be an excellent buy that should be acted on immediately.

GP AutoWerks:


7011 S.W. 46th Street

Miami, FL 33155


Porsche Logo
Porsche Club of America Logo

Independently Serving

The Greater Miami

Porsche Community

Since 1979


GP AutoWerks

Miami's Master Porsche Mechanic

For Classic & Contemporary Porsche Sport Cars.


Disclaimer: Porsche, the Porsche crest, and Porsche car model numbers & names are under licensed use by Porsche Cars North America, Inc. (PCNA) from the owner Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Porsche AG ("Porsche.") The PCA logo is the property of the "Porsche Club of America." The "Porsche Museum" name is the property of Porsche. No association or affiliation with Porsche, PCNA, The Porsche Museum, or PCA is intended or implied by GP AutoWerks, an independent Miami-based Porsche service, repair, rebuild & PPI shop that offers comprehensive Master Porsche mechanical care for classic & contemporary Porsche sports cars---356 through 991, 928, 944, Boxster, and Cayman. Editorial content is provided in this website including both text & photos. Editorial photos are presented with a box rule around them. Any use of the word "safe" or "safety" in this website holds a car's owner and/or driver ultimately responsible for all matters concerning the standing, driven, or otherwise in use vehicle. Credits: Videos are Porsche productions presented for educational & entertainment purposes only. Permission for presentation is on file. Outlined photos are editorial content. Photos of Miami Porsche service, repair, rebuilding and PPI depict the property of GP AutoWerks' customers. All such photos are used with the expressed permission of GP AutoWerks' customers whose permission is into perpetuity. Photography, unless credited otherwise, is © 2015-2020 Karl Hansen. All rights reserved. Photo captions are provided to reflect photo content and credits appear where due.

Website structure © 2015-2022 GP AutoWerks. All website content but for credited photos is © 2015-2022 Karl Hansen. All rights reserved.

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Miami Porsche Service, Repair, Rebuild & PPI  |  GP AutoWerks

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silver miami porsche against a blurred background

GP AutoWerks

Miami's Master

Porsche Mechanic

For Classic &



Sport Cars.

mobile device logo: porsche crest
mobile device logo: porsche club of america

Independently Serving

the Greater Miami

Porsche Community

Since 1979

GP AutoWerks is a Miami-based Porsche service, repair, rebuild  & PPI shop with 30+ years Porsche car care experience. From general maintenance, to factory spec or custom engine and transmission rebuilds, GP offers comprehensive Master Porsche mechanical care and PPI for Porsche sport cars.

Tap photos in site for captions.


miami porsche engine at last stages of GP rebuild
Defective bushing replaced in front left suspension of miami porsche by gp autowerks
chain housing cover being installed in miami porsche by george perdomo
miami porsche steering wheel and gauge cluster in excellent condition
porsche engine with pistons exposed at gp autowerks shop in miami
2017 Porsche Turbo S is on car lift for PPI
Porsche Logo on Porsche Service Repair P
Porsche Club of America Logo on Porsche

Porsche, the Porsche crest and Porsche model names are the property of Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Porsche AG ("Porsche") and is under licensed use by Porsche Cars North America, PCNA. The PCA logo is the property of the Porsche Club of America. No affiliation with either Porsche or the Porsche Club of America is intended or implied by GP AutoWerks, an independent Porsche service, repair, rebuild & PPI shop located in Miami, FL., U.S.A. Any use of the word "safe" or "safety" in this mobile site holds a car's owner and/or driver ultimately responsible for all matters concerning the operational safety of the car being driven or otherwise used. Please see desktop website for full disclaimer and credits.


Website structure © 2015-2022 GP AutoWerks. Website content unless credited otherwise is © 2015-2022 Karl Hansen. All rights reserved.

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