EXHIBIT 32.1

EXTERRAN HOLDINGS, INC.
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Exterran Holdings, Inc. (the “Company”) for the year ended December 31, 2008, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Stephen A. Snider, as Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that, to his knowledge:

(1)	the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2)	the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ STEPHEN A. SNIDER Stephen A. Snider

Chief Executive Officer

February 26, 2009