Performance Packages
PSI Proformance Performance Packages.
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2015-2020 Ford Mustang Shelby GT350 Stage 1 Performance Package
PSI Proformance Stage 1 Performance Package for 2015-2020 Ford Mustang Shelby GT350 There’s nothing quite like the 5.2L Voodoo V8 screaming past 8,000 RPM. Unlock even more sound and performance from your GT350 with PSI Proformance Stage 1 Performance Package—delivering increased horsepower, enhanced driving feedback,...- $1,399.00
- $1,399.00
- Unit price
- per
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2015-2020 Ford Mustang Shelby GT350 Stage 2 Performance Package
PSI Proformance Stage 2 Performance Package for 2015-2020 Ford Mustang Shelby GT350 There’s nothing quite like the 5.2L Voodoo V8 screaming past 8,000 RPM. Unlock even more sound and performance from your GT350 with PSI Proformance Stage 2 Performance Package—delivering increased horsepower, enhanced driving...- $4,899.00
$5,300.00- $4,899.00
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2020-2023 Ford Mustang Shelby GT500 PSI 900X Stage 3 Performance Package
PSI Proformance 900X Stage 3 Performance Package for 2020-2023 Ford Mustang Shelby GT500 The 2020+ Shelby GT500 has already set the bar as the most capable production Mustang to date. However, at PSI Proformance, we understand that our customers are always looking for that...- $14,999.00
- $14,999.00
- Unit price
- per
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2020-2023 Ford Mustang Shelby GT500 PSI 850X Stage 2 Performance Package
PSI Proformance 850X Stage 2 Performance Package for 2020-2023 Ford Mustang Shelby GT500 The 2020+ Shelby GT500 has already set the bar as the most capable production Mustang to date. However, at PSI Proformance, we understand that our customers are always looking for that...- $9,999.00
- $9,999.00
- Unit price
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2020-2023 Ford Mustang Shelby GT500 PSI 800X Stage 1 Performance Package
PSI Proformance 800X Stage 1 Performance Package for 2020-2023 Ford Mustang Shelby GT500 The 2020+ Shelby GT500 has already set the bar as the most capable production Mustang to date. However, at PSI Proformance, we understand that our customers are always looking for that...- $5,995.00
- $5,995.00
- Unit price
- per
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2012-2015 Chevrolet Camaro ZL1 Stage 3 Performance package
PSI Proformance Stage 3 Performance Package for 2012-2015 Chevrolet Camaro ZL1 Take your ZL1 to the next level with our Stage 3 Performance Package—engineered for serious enthusiasts who demand race-proven power and precision. Designed specifically for 2012–2015 Camaro ZL1 models, this package delivers significant...- $14,995.00
- $14,995.00
- Unit price
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2012-2015 Chevrolet Camaro ZL1 Stage 2 Performance Package
PSI Proformance Stage 2 Performance Package for 2012-2015 Chevrolet Camaro ZL1 Take your ZL1 to the next level with our Stage 2 Performance Package—engineered for serious enthusiasts who demand race-proven power and precision. Designed specifically for 2012–2015 Camaro ZL1 models, this package delivers significant...- $9,999.00
- $9,999.00
- Unit price
- per
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2010-2015 Chevrolet Camaro SS L99 Auto Stage 1 Package
PSI Proformance Stage 1 Performance Package for 2010-2015 Chevrolet Camaro SS Unlock your Camaro’s true potential with PSI’s Performance Packages—engineered for 2010–2015 Camaro SS models. Whether you're starting with basic upgrades or building a fully track-prepped machine, our Stage packages deliver scalable performance gains tailored...- $4,695.00
- $4,695.00
- Unit price
- per
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2010-2015 Camaro SS Stage 2 Performance Package
PSI Proformance Stage 2 Performance Package for the 2010-2015 Camaro SS Unlock your Camaro’s true potential with PSI’s Performance Packages—engineered for 2010–2015 Camaro SS models. Whether you're starting with basic upgrades or building a fully track-prepped machine, our Stage packages deliver scalable performance gains...- $8,699.00
- $8,699.00
- Unit price
- per