CHICAGO--(BUSINESS WIRE)--Fitch Ratings has affirmed BorgWarner Inc.'s (BWA) Long-Term (LT) Issuer Default Rating (IDR) at 'BBB+' and its Short-Term (ST) IDR at 'F2' following yesterday's announcement that it will acquire Remy International, Inc. (REMY). Fitch has also affirmed BWA's unsecured credit facility and senior unsecured notes ratings at 'BBB+' and its commercial paper (CP) program rating at 'F2'. A complete list of the ratings is provided at the end of this release. Fitch's ratings ap