Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
Performance Systems Integration (PSI) is a professional specialty auto parts eCommerce brand headquartered in New Jersey, USA. It focuses specifically on GM LS/LT series engine swap builds, and specializes in factory-spec standalone swap wiring harnesses and full complementary swap parts. It is a well-known and trusted specialty supplier in the North American LS swap community.
The website organizes products clearly by engine generation and vehicle application. Beyond its core standalone swap harnesses and engine control kits, it carries a full range of parts required for swaps including fuel system components, cooling system parts, driveline components, chassis and suspension parts, and gauge kits. It also offers free access to swap support resources such as engine identification guides, a VIN decoding tool, installation guides, and technical videos. Products are priced individually, ranging from $500 to $1900 USD, with most popular items falling between $600 and $1000 USD.
Pros: All PSI swap harnesses are manufactured domestically in the USA, using OEM-spec connectors and high-temperature wire. Every harness undergoes 100% computerized function testing before leaving the facility, so quality and reliability are far higher than products from smaller aftermarket manufacturers. The clear product categorization and extensive technical support also drastically lower the barrier of entry for DIY builders shopping for and installing parts, and in-stock items ship within 1-3 business days.
Cons: The brand is primarily focused on the North American domestic market. For shoppers in China, international shipping is expensive and slow, the site does not support payment in RMB, and after-sales service is logistically inconvenient.
The website is accessible directly from China with normal page loading speeds. It is a good option for experienced American vehicle enthusiasts and custom shops based in China looking to source core LS/LT swap parts. Casual builders are recommended to source parts through a domestic Chinese reseller instead.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on performancesystemsintegration.com official site.
performancesystemsintegration.com is an United States Auto provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach performancesystemsintegration.com directly.