Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on August 7, 1991.
As of Tuesday, February 4th, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModels
315Y1975-1981 light-duty/ medium-duty Chevrolet van and mini-motorhome equipped with a open-loop 283-400 CID engine

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-200-4
  • Executive Order 200-4 / D200-4
  • ARB # D-200-4
  • Executive Order No: D-200-4
  • C.A.R.B. No. D-200-4
  • Resolution D-200-4
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-200-4 PDF

D-200-4 Document:

CARB_D-200-4

(Page 1 of ?) State of Californisa AIR RESOURCES BOARD EXE&UTI?E ORDER D—200—4 Relating to Exemptions Under Section 27156 af the Veh\cta Cede Dous THORLEY HEADERS, mNc. EXHAUST HEADER — (P/N 315Y) k }Pursuant to the autharxty vested in the Air Resources Board by Section 27156 f the Vehlc}e Code; and ursuant to the AJthor;ty vested in the unders1gned by Sections 39515 and Sslfi_af the Health and Safety Code ard Executlve Order 6— 45 5; T IS ORDERED AND RESOLVED That the 1nsta1%atlon of the Doug Thorley xhaust‘headerpart ho. 315Y manufactured by Doug Thorley Headers, Inc. of 61‘ Commerce. Street, Corona, CA 91720, has been found not to reduce the ffectiveness of the applicable vehicle pollution control system and, herefore, is exempt from the prohxbitlans of Section 27156 of the VehICTe ode" for1975— 1981 made] year light——~—duty/medium—duty Chevrolet vans and tor homes equxpped with a open—loop 283—400 CID engine. ~ _B ecutzve Drdpr is valid provided that installation xnstructxons for this exhaust header will not recommend tuning the vehicle to specifications dlfferent}from those submxtted by Doug Thorley Headers, Inc. # Changes‘made to thedesign or operating conditions of the exhaust header, as : exempt by the Air Resources Board, which adversely affect the performance of ;ma vehxc]e 5 pol]utaon control system sha13 1nva?1date thls Executive Order. ,:Marketxng of this exhaust header using any ijdentification other than that _ shown in this Executive Order or marketwng of this exhaust header for an ‘— applicatfon other than those Tisted in this Executive Order shall be ~prohibited unless prior approval is obtained from the Air Resources Board. \Exremption of this exhaust header shall not be construed as exemption to sell. offer for sale, or advertise any camponent of the kit as an individual dev1ce. Thzs Executive Order does not constitute any opinion as to the effect the use of this exhaust header may have on any warranty sither expressed or implied by the vehicle manufacturer. oo tmmm

mcam. HEADERS, INC. | EXE£UTIVE ORDER D—200—4 TN (Page 2 of 2) s”requ”'ted,vitzshall bé.heldwithin ten days of he"o *may not> be revoked until a C «f:August,;1991; "t. / Summerfield / — ~Ass stantD1v1sion h}ef Mobiie Source D!VtSlon


Document Created: 2005-09-01 12:40:22
Document Modified: 2005-09-01 12:40:22

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