If You own a early EVO or Twin Cam 99-07 with fuel injection

Your best bet is to upgrade now for more power better fuel management for improved fuel economy and better throttle response thru the RPM range on the flat or on the grade.

Don't trade it in !! Just up date to newer Closed Loop system incorporating a new computer and O2 sensors installed for live tuning. Up grade to 2015 specifications. Why spend Thousands on a new bike when this is the ticket-You'll be glad you did!! :)

If you're the kind of rider who's satisfied with the performance of your stock late-model Harley-Davidson® bagger, stop reading right now, and use this brochure to line the bottom of your parakeet cage. However, if you want to go really fast, read on!

It's common knowledge that to make more power you need to get more air into your motor. That's what the new Throttle Hog throttle bodies are for. More Air. If you have a large displacement fuel injected engine with throttle-by-wire, you need a Throttle Hog!

Throttle Hogs are available in three sizes: 58mm, 66mm, and the giant 70mm. The 58mm is recommended for street engines up to 110 cubic inches and is perfect for our 106" big bore kits. The 66mm is recommended for engines with stock style heads, with round intake ports, of up to 125 cubic inches. That makes them ideal for our 124" Hot Set Up Kit® or T124 engines. The 70mm Throttle Hog is specifically for large displacement engines with S&S B2 special application cylinder heads. That means the port ends are machined with the oval port shape to match the ports on the heads.

The manifold end of Throttle Hogs with 58mm and 66mm bore diameters are machined for stock height engines. The 70mm B2 throttle body is designed for 145" engines but requires customer alteration to accommodate smaller engine heights.

Special S&S Stealth air cleaner kits are available for Throttle Hog throttle bodies. Use your stock air cleaner cover or choose one of the S&S covers. Get maximum cosmetic flexibility as well as maximum performance. Go fast and look good doing it!