Frustrated in NJ

[KenP]

Hall Hummer in VA Beach installs SMA products.
If your dealer sells and intalls them, doesn't it make sense they would warrant them?
Check with SMA and be sure to inquire about their dealer agreement with regard to warranty claims and installation. Be specific.
Besides, you are not messing with the engine config. Those products should have no bearing on the warranty. There is no way a different filter, tube, pipe, muffler, clamp, etc should have any bearing at all on your warranty.
BTW, any muffler shop should be able to install the exhaust and probably the intake. But the intake appears easy as steak.
I would be hesitant to purchase from them after this. They already have enough of your money.

Black Lingenfelter Lux