Hundreds of new product announcements cross the desks of PRI editors each month. Following are our top picks for September.

PERFORMANCE LOWERING SPRING KIT FOR TESLA MODEL 3 AWD

Rekudo
holley.com/brands/rekudo/

Competition-minded Tesla 3 owners will appreciate the aggressive stance and improved cornering from these lowering springs from Rekudo, part of Holley Performance Products, Bowling Green, Kentucky. The springs will lower the ride height 1 inch in both the front and rear, and are designed to work with the Tesla factory struts.

“These lowering springs are well suited for autocross and track days due to the fact that they lower the car’s center of gravity, and their progressive rate will improve handling as well as maintain a comfortable ride quality under normal driving conditions,” explained Greg Whittle.

The kit will fit 2018–2021 Tesla Model 3 AWD vehicles and come in a black epoxy finish. Overall, they’re designed with a slightly firmer ride when compared to the factory springs while offering a “good compromise” and a sporty feel.

“When installed by a competent mechanic, the install should take two to three hours,” added Whittle. “Other than basic hand tools, the only ‘specialty tools’ required are a coil spring compressor and a thin-wall 13-mm socket to access the top strut nuts. Thick sockets, such as impact sockets, will not clear the counterbore the strut nuts are recessed into.”

The front springs feature a constant 257 lbs./in. rate, while the rear springs have a variable 314–525 lbs./in. rate. —Mike Magda

SUPERLITE 1200 & 1600 LITHIUM MOTORSPORTS BATTERIES

E3
e3lithium.com

More power and lighter weight are the two main selling points of the new SuperLite 1200 and 1600 lithium batteries from E3 Spark Plugs in Ponte Vedra, Florida, both of which are designed for motorsports applications. 

To demonstrate these benefits, E3 replaced the two 16-volt AGM batteries in an ARCA car with just one SuperLite 1600. The car had considerable amp draw with EFI, coil-on-plug ignition, and 12 electric cooling fans. After 300-plus laps of testing, the data recorder revealed absolute consistent voltage and amperage outputs.

“Next, we wanted to see what it would take to kill the battery,” said Rob Fisher.

The alternator was disconnected, and the car ran 25 laps, or 40 minutes, on battery power alone without a loss of performance.

“In a lead-acid or AGM battery, it will deliver 100% only while fully charged, then drop off to 95%, 90% and so on as it drains,” explained Fisher. “Our lithium battery will deliver 100% of capacity and equal output at all times until the second it runs out.”

The SuperLite 1200 is 13.2 volts, features 24.8 amp-hours capacity, and weighs just 6.9 pounds. The SuperLite 1600 weighs 8.9 pounds, features 1600 pulse cranking amps, and 32 amp hours of capacity.

E3 also offers lithium batteries for marine and powersports applications. —Mike Magda

RFX WIRELESS SUSPENSION LOAD STICK

Intercomp
intercompracing.com

The new RFX wireless load stick eliminates the cumbersome cabled indicator currently utilized by many load sticks on the market, allowing racers to concentrate on the measurements.

“Load sticks can help a racer ensure consistent performance from their car in a couple of ways. While at the track, load sticks can be used to determine the strength of spring needed to get a car to a particular attitude at one, two, or all four corners of the vehicle,” explained Aaron Van Heel of Intercomp, Medina, Minnesota. “This could be the result of a setting change or damage sustained while out on track.”

Each Intercomp load stick features a 3,000-pound capacity load cell and can span shock mounting points stretching from 15 to 25.25 inches. The bodies are machined from hex-shaped billet aluminum for easy adjustment with hand tools.

“Load sticks can also be effective for racers that travel to several different race tracks throughout a season,” Van Heel noted. “Race tracks with extremely similar traits at the beginning of a race event will oftentimes behave very differently from beginning to end. Small variables, like moisture content in the air, have the potential of making last weekend’s race-winning setup completely un-drivable. A racer that utilizes load sticks has a better chance to keep up with those changing conditions by providing the most complete picture of a race car’s handling performance.” —Mike Magda