The maintenance of an Outperform rating suggests a positive outlook on GE Aero by RBC Capital, indicating confidence in the company's future performance. However, the reduction in the price target from $180 to $160 may reflect adjustments in market conditions or expectations, potentially leading to short-term volatility in GE's stock price. The overall impact is considered neutral in the short term as the positive rating is counterbalanced by the lowered price target.