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If you're diving into a serious engine build or just looking to give your BMW some extra oomph, the Supertech Spring / Retainer Kit is a solid choice. These kits are tailored for those who really care about performance and want top-notch quality without breaking the bank. I’ve seen what these can do, and trust me, they don’t disappoint.
So, what’s in the box? You’re getting a beehive spring design that’s not just for show. With a seat pressure of 76 lbs at 39mm, these springs are ready to handle some serious RPMs. They’ve got a max lift of 14.00mm and a coil bind of 25.80mm, which means they can keep up with your engine's demands without flinching. The rate sits at 12.80 lbs/mm, making them responsive and reliable.
Each kit includes retainers (specifically, RET-BM2521/T1-BE) and seat locators (SEAT-BMS54-BE (2mm)), ensuring everything fits together perfectly. It’s like having a well-oiled machine—everything just clicks.
Now, let’s talk fitment. This kit is designed for the BMW M3 from 2001 to 2006, the Z3 from 2000 to 2002, and the Z4 from 2006 to 2008. If you’re working on an S54 engine, you’re in luck—this is the SPRK-HM1007BE-S54 kit you need for that 3.2L powerhouse.
In the end, if you’re serious about your ride and want to give it the best upgrade possible, these springs are a great investment. They’re built for performance enthusiasts who know that the right parts make all the difference.
Other Part Numbers:
Supertech #sptSPRK-HM1007BE-S54
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| Vehicle Make/Model | Year | Trims |
|---|---|---|
| BMW M3 | 2001-2006 | Base |
| BMW Z3 | 2000-2002 | Roadster |
| BMW Z3 | 2000-2002 | Coupe |
| BMW Z3 | 2000 | 2.8i |
| BMW Z3 | 2000 | 2.0i |
| BMW Z3 | 2001-2002 | 3.0i |
| BMW Z3 | 2001-2002 | 2.2i |
| BMW Z4 | 2006 | 3.0i |
| BMW Z4 | 2006-2008 | Coupe 3.0si |
| BMW Z4 | 2006-2008 | Roadster 3.0i |
| BMW Z4 | 2006-2008 | Roadster 3.0si |
| BMW Z4 | 2006 | 2.5i |
| BMW Z4 | 2007-2008 | 3.0si |
| BMW Z4 | 2007-2008 | 2.5si |
Supertech is a company located in Silicon Valley San Jose, California. It is the place where companies with the most cutting-edge technology are located. It allows Supertech to gain access to the latest technology that helps them create high-quality products. Supertech is known for manufacturing some of the best aftermarket internal engine parts in the industry. Today, they are considered the leading brand in their market segment.
Valve Train Component ExpertsWith over 30 years of experience, Supertech was able to develop products that meet the demands of their customers. They offer high-performance valves and valvetrain components that are used by many engine builders and tuners everywhere.
Racer’s Brand Of ChoiceSupertech provides the motorsport industry with top-notched products for virtually any type of racing discipline. Whether it’s Road Racing, Drag Racing, or Rally, they have the right parts for you. Each piece is carefully designed and manufactured to provide optimum performance and give racers the competitive advantage they need to win championships.
Purchase Supertech Products At Vivid RacingIf you are in the market for high-quality performance parts for your engine, Supertech is the brand for you. The company has always been on edge in creating innovative products that would keep up with the fast-changing automotive trend. Whether for the tracks or the street, Supertech guarantees that you will only get the best products from them. To know more about Supertech, visit Vivid Racing and check out their list of parts that fit your specific needs.
Due to the nature of the application, these parts are sold without any express warranty or any implied warranty of merchantability, or fitness for a particular purpose.
Supertech Performance Inc. shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchase, which may arise and/or result from sale, installation or use of these parts.
The sole obligation of Supertech Performance Inc., shall be limited only to the products to be found defective, in either workmanship or material, after inspection performed by our company. This Limited Warranty applies only to the original purchaser of the product and only covers the replacement or repair of the product at our election.
Supertech Performance Inc. shall not, under any circumstances, be liable for any special, incidental or consequential damages, including, but not limited to, damage, or loss of property or equipment, loss of profits or revenue, cost of purchased or replacement goods, or claims of customers of the purchase, which may arise and/or result from sale, installation or use of these parts.
The sole obligation of Supertech Performance Inc., shall be limited only to the products to be found defective, in either workmanship or material, after inspection performed by our company. This Limited Warranty applies only to the original purchaser of the product and only covers the replacement or repair of the product at our election.
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