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350Z LSx Swap Kit


After spending quite some time building and testing the all new LSx swap kit for 350z chassis we are proud to offer it for sale!

Our kit is designed to be an easy, straight forward installation allowing you to utilize either the standard GM T56 transmission, or a factory 350z transmission (with optional CD00x adapter kit). 

The "HGC" High Ground Clearance 350z LSx swap headers also utilize an innovative design feature, placing the collector at an angle and locating it above the factory chassis bracing. To allow even easier installation and to avoid costly and time consuming fabrication, the ISR Performance HGC headers terminate at a 2 bolt flange which is designed to mate up to your existing aftermarket Y Pipe and exhaust (Pair it with the ISR Y pipe and single GT or EP Dual for free flow and great sound)!

Not all Y-Pipes are created equal!

Not all Y-Pipes are created equal!While planning your full exhaust upgrades please take into account that if one improperly built aftermarket component is used it can cause DETRIMENTAL fitment issues while installing other components, this is why we recommend ONLY using high quality components! For example, a .5” - .75” shift in Y pipe or test pipe length can cause [...]

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2016 will be an exciting time for ISR Performance and our devoted enthusiast, with a new year upon us comes new and amazing opportunities. ISR Performance Parts LLC is proud to announce that we are actively looking to Sponsor Enthusiast. We encourage enthusiast, be it pro or amateur drives along with show car owners to email info@isrperformance.com with your up to [...]

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ISIS Performance NA, LLC to Rebrand to ISR Performance Parts, LLC

For immediate release:ISIS Performance NA, LLC. announces we will be formally changing and rebranding our products to be known as ISR Performance Parts, LLC. immediately. The ISIS Performance brand has been a fast growing and innovative performance parts manufacturer for more than 6 years. We began using this name long before it became associated with the notorious terrorist organization.We [...]

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ISIS Performance NA to Introduce a MAP Policy

ISIS Performance NA MAP Pricing GuideISIS Performance NA actively supports the advertising and promotion of its products by its domestic dealer network, and in an effort to strengthen its dealer network it has decided to institute a MAP pricing policy. Effective May 1st 2015 all dealers will be required to meet ISIS Performance NA MAP pricing requirements. MAP policy [...]

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Looking for something specific?

Looking for something specific? Well, we made it even easier to find what you need with our new Choose Make and Model category. Everything we have listed for your car in one simple place. http://www.isisperformance.com/choose-make-model/

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Shipment Delay

Dear All ISIS Performance Customers and Retailers, We wanted to take this time to thank you for your continued support in our products and helping us grow into the company that we have become today. We have some big things coming for the 2015 year and are working our hardest and fastest to produce new items to expand our [...]

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Miata Owners

In case you haven't seen, here are some more detailed shots of the NA and NB exhaust! It is a COMPLETE header back exhaust and will include an o2 extension so you can use your factory secondary o2 and not have a CEL. 2.5'' stainless piping, 4'' tip!NA Exhausts -2.5'' Stainless Piping - 4'' tip3 [...]

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