Zipper’s Performance offers Zip Kits, pre-engineered packages including a Thundermax air cleaner kit, a choice of performance pipes and and the cutting-edge ThunderMax® with AutoTune EFI Controller. Conceived to immediately optimize reliability and increase the performance of factory Harley-Davidson engines. The Sportster featured here shows the kit with Thundermax air cleaner and D&D 2 into 1 black Bob Cat exhaust. The quick performance upgrade can be installed in less than after-noon.
The Zip Kits are proven, matched Components that Work together for a smoother, cooler, better running engine with more power at all RPMS. Improved starting, sharper sound, too. The kit supports future upgrades. There are Zip Kits available for all Harley models, Touring, Softail, Dyna, V-Rod models. Zippers will be present for sales and installation at Delmarva Bike Week and OC Bike Fest Sept. 11.15.You can setup an appointment at 410-579-2828. Zipper’s Performance Products.
Drooling over this blacked out Sportster.
Someone stole the front fender and the rear one looks wrong. Never though I’d be defending the looks of a untouched bike, but my neighbor’s bone stock 2010 looks much nicer.
Like this Sporty, much better than stock.
The 2004 and newer Sportsters are the best engines Harley makes. I wish they would just make them bigger to put in the bigger bikes. Sporty’s are cool and badass but too small for a lot of us bigger guys.
This sounds like a great kit for the late model Sportys. Must be expensive since the price isn’t listed.
I’m sure those pipes add horsepower, but boy are they ugly. The collector/muffler at the end is too fat and looks homemade. Why is it that efficient exhausts for motorcycles usually look hideous?
Whitewalls look sweet on a blacked-out bike.
I think the pipes look pretty good, but it’s a mix of styles. IMO, the bike would look better with mid controls and a higher seat – it’s more of a cafe racer pipe really.