JayBrake 4“ extended forwards. ¹⁾
They're expensive but very good quality.
They are made for an FXR but they have an adaptor for them to fit the Sportser.
In addition, a 4” extension plate had to be purchased from another company along with a longer, adjustable shift rod from J&P Cycles.
Total cost was about 800 bucks.

Jaybrake provided the black tubes (the adaptors) that come out of the frame and attaches to the extension plate.

JayBrake 4“ Extended Forwards 2)

Performance Machine 2” extended forwards.
Purchased from American Classic Motors, a bit pricy at $339 but they are chrome billet aluminum.
Most billet forwards go for $400 or better.
These are made by performance machine for V-Twin.
Even V-Twin lists them at $405.

Performance Machine forwards for XLC mounted to a 90 XLH 1200 3)

Accutronix 6“ Forward Control Extension kit for a 2004-Up Sportsters. ⁴⁾
Price: $268.95
Kits: 2004-2013 and 2014-Up
These +6” Forward Control Extension Plates are machined from 6061 T-6 Billet Aluminum and powder coated gloss black to match your frame.
The shift & brake rods are polished stainless steel.
The extension plates bolt to the frame where the stock Sportster forwards mount.
The shift & brake arms as well as the foot pegs then mount 6“ forward from the stock location helping people with a long inseam stretch out.