Exhibit 99.4
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration StatementNo. 333-200871 on FormS-8 and Registration StatementNo. 333-209036 on FormS-3 of our reports dated March 2, 2017 relating to the consolidated financial statements and financial statement schedule of Metaldyne Performance Group Inc. and subsidiaries, and the effectiveness of the Metaldyne Performance Group Inc. and subsidiaries’ internal control over financial reporting, appearing in this Current Report on Form8-K of Metaldyne Performance Group Inc. dated March 2, 2017.
/s/ Deloitte & Touche LLP |
Detroit, MI |
March 2, 2017 |