Our throttle body heat shield is designed to keep the throttle body cooler by reflecting the heat generated by the exhaust crossover pipe.
Made of 304 stainless material it will last a lifetime and aid in the battle against KR.
You probably won't notice a seat in the pants difference but keep in mind that 1 deg of KR on a 3.4 pulley'd GTP robs ~5. Even if the heat shield stops 1/2 a deg of KR, it's still an excellent HP/$ product!
Series II - 97-03 Grand Prix, 97+ Regal, 96+ Bonneville, 97+ Park Ave, 96+ Riviera, 97+ Monte/Impala
Series III - 04+ Grand Prix (only).