Four stroke pipes typically run at higher temperatures (up to 900 degrees F) than two stroke pipes. When a header pipe gets that hot it can ding easily.
E Line's heat shield pipe guards protect the header pipe from roost dings as well as protecting your pants and boots from being cooked and destroyed by the canisters and new pipe designs.
If a stock four stroke pipe has welded on mounting tabs then the heat shield will mount directly to those tabs for most applications. On aftermarket pipes and stock pipes without welded on tabs, the heat shields are attached with E Line fabricated stainless steel mounting brackets that have the correct distance from heat.
The E line head shield was a great addition to my 2019 husqvarna FC , it not only looks great , but does a great job protecting against a possible burn since these 4stk run extremely hot . A must for all 4stk header pipes.
Super well produced unit by Eline. Took 10 minutes to install. Seems it is more to protect from burns than to protect pipe, though it will do that to a degree; if you bash the pipe area the Eline guard may get hella tweaked. Don't know yet, hope I never find out.