
Experience the Bespoke Porsche 997 R13 GT3R Street Conversion.
At GT3RR, we offer a complete turnkey solution for the ultimate Porsche street conversion, so why not skip the wait with our curated stock of semi-built donor cars, ready for your final specification and personal touch.
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The Aesthetic: Choose between exposed carbon fibre or a vast palette of Porsche-heritage and custom paint finishes.
Extend this customisation to our branded high-performance brake system (8-pot front/6-pot rear), finished in a colour of your choice.
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The Power: Every forged V8 is hand-built in-house by the renowned Kyle Rushall of LSX-Performance
Choose your power delivery: the LS 7.3L naturally aspirated, the 6.2L Supercharged, or the 6.2L Twin Turbo.
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The Stance: Navigate any road with our tested air suspension system, offering pre-set ride heights at the touch of a button.
All builds are grounded by our GT3RR-RS forged 3-piece wheels, available in lightweight aluminium or Super lightweight forged magnesium in centre-lock or 5-stud configurations.
Precision Engineering. Personal Expression.
GT3RR invites you to spec the Porsche 997 R13 GT3R street conversion of your dreams.
With our turnkey process starts with our existing inventory of semi-built chassis, allowing you to bypass the initial build phase and jump straight into the details that really matter.
Book a private appointment today to view our R13 V8 street builds and begin your journey.

Forged Magnesium Wheel 10.5x19 Front // 13x19 Rear

7.3 750hp // 6.2 Supercharged 700hp+ // 6.2 Twin Turbo 800hp+

Floating Disk, Custom Suspension

Forged Magnesium Wheel 10.5x19 Front // 13x19 Rear
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Build your own 997 from Engine Spec to choice of colour
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![]() Porsche 997 2013 GT3RLS7 V8 Street | ![]() Porsche 997 2013 GT3RLS7 V8 Street | ![]() Porsche 997 2013 GT3RLS7 V8 Street |
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![]() Porsche 997 2013 GT3RRear Bumper Outake Grills | ![]() Porsche 997 2013 GT3RCarbon Canards |
The Ultimate Evolution of the Porsche 997
At GT3RR, we offer you the rare opportunity to bespoke-build your own supercar, from the powertrain to the paintwork.
While the Porsche 997.1 (3.6L & 3.8L) is a design icon, the factory engines face a known shelf-life due to bore scoring. We view this not as a failure, but as a blank canvas. Our in-house engineering team specialises in transforming the 997 platform by installing high-performance V8 power plants that offer reliability and raw power the original 3.8 flat-six cannot match.
Select Your Performance Level:
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LS7 7.3: 750 HP
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LS 6.2 Super Charged 700 HP
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LS 6.2 Twin Turbo: 800+ HP
Tailored Aesthetics:
Your build is a reflection of your style. Choose any shade from the Porsche Colour Gallery or opt for our striking exposed carbon fibre finish,
including the roof and doors which are aimed more at our track focused builds.
Interior Refinement:
Our new Interior Enhancement Programme allows you to customise every touchpoint. From Alcantara-wrapped dashboards and door cards to full carbon fibre lightweight racing seats, we ensure the cabin is as focused as the engine bay.
Ready to start your GT3RR R13 build? Contact us today to discuss your specifications.



























