jahsh

I'm thinking about installing H&R Race springs on my 2005 TL, but was wondering which shocks/struts would make a good fit?

The kit says it will lower approx. 1.75in in the Front and 2in in the rear.

Any suggestions?

ExcelerateRep

If your lowering the car that much, definitely go with something like the Koni Yellow. They can handle lowering springs and still make the ride feel great.
Koni Shock - Sport Series - Excelerate Performance - Japanese and European Performance Specialists!!

Otherwise, for about the same cost as shocks and springs you could get a set of coilovers that will lower you the same amount and be adjustable. We have the Street Advance coilovers in stock and available for $621!
TEIN Dampers - Street Advance - Excelerate Performance - Japanese and European Performance Specialists!!