When form and function jive on the same level, that’s when you know you’ve created a friendly monster! And that’s pretty much how I feel about Horsepower, Inc.’s family of M8 Softail performance products. Now, with HPi’s FXLRST stainless exhaust, I’ve rounded out the external parts package on the Lowrider’s 114 (62mm billet throttle body/manifold, injectors, V2 air cleaner, and breather kit)—and the dyno results fully back that decision up: 131hp @ 6,300rpm / 123lb-ft @ 4,500rpm.  

HPi has pretty much become synonymous with modern V-Twin performance—their products literally “speak” for themselves … especially their stainless exhaust, which has that unmistakable throaty growl. And it should come as no surprise, as HPi’s owners, Jimmy and Laura Light have poured their heart and soul into the business since taking over in 2002 and re-establishing the company right smack-dab in the middle of America’s performance heartland: Gasoline Alley in Indianapolis, IN. (Along with designing and manufacturing their components in-house, HPi also offers engine building/tuning services as well, making them one of the most well-rounded aftermarket V-Twin companies around!) From conception to development to fine-tuning and testing, the assurance you get with each part is only rivalled by the performance your bike attains.  

Even though my Softail is in fact NOT an ST model, since I’m running the Sportglide saddlebags, I ordered the ST pipe from HPi (thanks Ryan for handling the order seamlessly!) to have installed and subsequently re-tuned and dyno’d by Danny Wilson at MotorWitch Industries (formerly Collective Phoenix/Leading Edge MFG.). This, once again, allowed me the perfect before-and-after road testing: a 320-mile commute to and from the MotorWitch compound … the latter of which was without a doubt the most enjoyable 4-hour ride, even with the increased exhaust decibel level!   

HPi is a second generation owned, manufacturer of performance fuel injected parts for Harley-Davidson® motorcycles.  Jimmy and Laura Light have been growing and expanding the family business since they moved the company to Indianapolis in 2012 and took over the day-to-day operations.  They opened their doors with just the two of them, and have now grown to 18 full-time employees with sales, assembly, manufacturing, fabrication, service and dyno tuning divisions all under one roof.

Horsepower Inc. is proud to produce an entire product line of American Made performance parts including, throttle bodies, air cleaners, hand-made exhaust systems, injectors, fuel rails, and much more.  Unlike other companies, all aspects of HPi’s design and manufacturing process is completed in-house.    

With their knowledge and reputation, HPi has earned many loyal and respected relationships in the industry.  This small family-owned business proudly produces American Made products and is most known for their second to none customer service. 

Horsepower, Inc.
(317) 757-8668
www.horsepowerinc.net   

MotorWitch Industries
(602) 919-3595
www.motorwitchindustries.com  

WORDS and PHOTOS: Rob Fortier