CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statement Nos. 333-117171,
333-136604, and 333-150571 on Form S-8 of BorgWarner Inc. of our report dated June 1, 2009,
appearing in this Annual Report on Form 11-K of the BorgWarner Diversified Transmission Products
Inc., Muncie Plant Local 287 Retirement Investment Plan for the year ended December 31, 2008.
/s/ DELOITTE & TOUCHE LLP
Detroit, Michigan
June 1, 2009