Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on July 28, 2003.
As of Thursday, January 2nd, 2025 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModificationRemarks
01-12-60-001Sierra, Silverado, Tahoe, Suburban, Yukon, Denali, Escalade, Avalanche, SSR, Trailblazer, Envoyinjectors, air intake box and filter, intercooler, fuel and timing calibrationsmax boost = 7 psi

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-488-4
  • Executive Order 488-4 / D488-4
  • ARB # D-488-4
  • Executive Order No: D-488-4
  • C.A.R.B. No. D-488-4
  • Resolution D-488-4
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-488-4 PDF

D-488-4 Document:

CARB_D-488-4

State of California AIR RESOURCES BOARD EXECUTIVE ORDER D—488—4 Relating to Exemptions Under Section 27156 of the Vehicle Code Magnuson Products, Inc. _ Radix Supercharger Kit Pursuant to the authority vested in the Air Resources Board by Section 27156 of the Vehicle Code; and Pursuant to the authority vested in the undersigned by Section 39515 and Section 39516 of the Healith and Safety Code and Executive Order G—02—003; IT IS ORDERED AND RESOLVED: That the installation of the Radix Supercharger Kit manufactured and marketed by Magnuson Products, Inc. of 3172 Bunsen Avenue, Unit K, Ventura, CA 93003, has been found not to reduce the effectiveness of required motor vehicle pollution control devices and, therefore, is exempt from the prohibitions of Section 27156 of the Vehicle Code for the 4.8L, 5.3L, and 6.OL General Motors vehicles listed in Exhibit A. The Radix Supercharger Kit includes the following main components: Eaton supercharger, intake manifold plenum, larger fuel injectors, air intake box and filter, air—to—water intercooler, and new fuel and ignition timing map calibrations. The stock _ fuel injectors are replaced while still maintaining the air—fuel ratio close to stoichiometric using the new fuel and timing calibrations. The stock fuel pressure regulator is retained, but the stock fuel pump is complemented with a fue!l pump voltage booster. The throttle body is moved to the supercharger inlet. All other emission—related components are in the stock location relative to the throttle body. The supercharger pulley specifications range between 3.0" to 3.7" depending on the engine displacement for which the kit is installed. All crankshaft pulleys are stock and maximum boost is limited to 7 psi. This Executive Order shall not apply to any Radix Supercharger Kit advertised, offered for sale, sold with, or installed on a new motor vehicle prior to or concurrent with transfer to an ultimate purchaser. This Executive Order is valid provided that the installation instructions for the Radix Supercharger Kit will not recommend tuning the vehicle to specifications different from those of the vehicle manufacturer.

M L. Changes made to the design or operating conditions of the devices, as exempted by the Air Resources Board (ARB), that adversely affect the performance of a vehicle‘s pollution control system shall invalidate this Executive Order. Marketing of these devices using any identification other than that shown in this Executive Order or marketing of this device for an application other than those listed in this Executive Order shall be prohibited unless prior approval is obtained from the ARB. This Executive Order does not constitute any opinion as to the effect that the use of these devices may have on any warranty either expressed or implied by the vehicle manufacturer. This exemption is issued based on submitted emissions test data from an independent laboratory on a 2003 model year General Motors Silverado 2WD vehicle (Test Group 3GMXTO05.3176) certified to the Ultra Low Emission Vehicle (ULEV) and Supplemental Federal Test Procedure (SFTP) standards: Federal Test Procedure: NMOG CO NOX HCHO Standards (g/mi) 0.100 4.4 0.4 0.009 00 Device (g/mi) with df‘s applied 0.074 1.7 0.2 0.002 SFTP (USO6 Cycle): ° NMHC+NOX _CO Standards (g/mi) 0.40 10.5 Device (g/mi) 0.08 3.6 SFETP (SCO03 Alternative Cycle): NMHC+NOX CO Standards (g/mi) 0.31 3.5 Device (g/mi) 0.06 0.1 Test results showed that the Radix Supercharger Kit when installed on the vehicle did not cause exhaust emissions to exceed the applicable emission standards during the Cold Start CVS—75 Federal Test Procedure or SFTP cycles. This Executive Order is also based on the On—Board Diagnostic II (OBD II) testing conducted on the same test vehicle. Although the evaporative system readiness indicator failed to set during initial tests, no diagnostic trouble codes were logged during testing. In addition, further OBD I!I tests performed after the replacement of the vehicle‘s evaporative canister showed that the evaporative system readiness indicator set both before and after the installation of the supercharger kit. Therefore, the Radix Supercharger Kit MAGNUSON PRODUCTS, INC. — RADIX SUPERCHARGER KIT —D—488—4

—3. when installed on the test vehicle did not affect the vehicle‘s ability to perform its OBD I! monitoring. However, the ARB reserves the right to monitor this issue and conduct additional OBD 11 system tests in the future. If such test results demonstrate that the Radix Supercharger Kit is adversely affecting emissions or the OBD II system, this Executive Order shall be effectively rescinded as of the date the test results are validated. In addition, the ARB reserves the right in the future to review this Executive Order and the exemption provided herein to assure that the exempted add—on or modified part continues to meet the standards and procedures of Title 13, California Code of Regulations, Section 2222, et seq. THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION, ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE AIR RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF THE RADIX SUPERCHARGER KIT. No claims of any kind, such as "Approved by the Air Resources Board" may be made with respect to the action taken herein in any advertising or other oral or written communication. Violation of any of the above conditions shall be grounds for revocation of this order. The order may be revoked only after a ten day written notice of intention to revoke the order, in which period the holder of the order may request in writing a hearing to contest the proposed revocation. If a hearing is requested, it shall be held within ten days of feceipt of the request and the order may not be revoked until a determination is made after the hearing that grounds for revocation exist. Executed at El Monte, California, this Z#"*"_ day of July 2003. Alle;r):gons, Chief Mobile Source Operations Division MAGNUSON PRODUCTS, INC. — RADIX SUPERCHARGER KIT — D—488—4

Exhibit A (E.0.%# D—488—4) NUMBER RADIX H2, SILVER H2 ONLY RADIX H2, POLISH H2 ONLY rag & Year Make Model Modet Engine Pulley Dia. Pulley P/N Add Early Model Kit? 31—12—00—007 Tuner P/N 1999 Chevrolet C/K Silverado 1500/2500 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—001 5.3 — LMZ 3.4 58—90—06—039 yes 88—85—53—001 1999 GMC CIK Sierra 1500/2500 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—001 5.3 — LM7 3.4 58—90—06—039 yes 88—85—53—001| 2000 Chevrolet C/K Silverado 1500/2500 4.8 — LR4 3,7" 58—90—06—037 yes 88—85—53—001 _ 5.3 —LM7 3.4 58—90—06—039 yes 88—85—53—001 6.0 —LQ4 3.1 58—90—06—131 yes 88—:85—53—001 2000 Chevrolet C/K Tahoe 4.8 — LR4 3.7 58—90—06—037 yes . 88—85—53—001 5.3 — LM7 3.4 58—90—06—039 yes 88—85—53—001 2000 Chevrolet C/K Suburban 1500/2500 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—001 5.3 — LM7 34 58—90—06—039 yes 88—85—53—001 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—001 2000 GMC CIK Sierra 1500/2500 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—001 5.3 — LM7 3.4 58—90—06—039 yes 88—85—53—001 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—001 | 2000 GMC C/K Yukon 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—001 (T 5.3 — LM7 3.4 58—90—06—039 yes 88—85—53—001 * 12000 GMC C/K Yukon XL 1500/2500 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—001 5.3 — LM7 3.4 58—90—06—039 yes 88—85—53—001 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—001 12000 GMC C/K Denali 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—001 | 4. §2000 Cadiliac Escalade 6.0 — LQg 3.3 58—90—06—033 yes 88—85—53—001 2001 Chevrolet C/K Sitverado 1500/2500 4.8 — LR4 j 3.? 58-90-06-037 yes 88—85—53—003 5.3—LM7 34 58—90—06—039 yes 88—85—53—003 6.0 —LQ4 34 58—90—06—131 yes 88—35—53—003 2001 Chevrolet —CK Tanoe 18 —LRa 37 56—90—06—037 yes 88—85—53—003 5.3 —LM7 3.4 58—90—06—039 yee 88—35—53—003 2001 Chevrolet C/K Suburban 1500/2500 4.8 — LR4 3.7 58—90—06—037 yes 88—85—53—003 5.3—LM7 34 58—90—06—039 yee 88—85—53—003 6.0 —LQ4 34 58—90—06—131 yes 88—85—53—003 oo ome CK Siera 1850072500 48 —LTRA 37 38—90—06—037 yes 86—85—53—.003 5.3 —LM7 34 58—90—06—039 yes 88—85—53—003 6.0—LQ4 31 58—90—06—131 yes 88—85—53—003 700 one CK Yukon 48 —LTRA 37 58—90—06—037 yes 35—85—53.003 5.3 — LM7 3.4 58—90—06—039 yes 88—85—53.003 2001 GMe CK Yukon XL 150072500 18 —TRi 37 55—90—06—037 yes 85—65—53—.003 5.3 —LM7 34 58—90—06—039 yes 88—85—53—003 6.0 . LQ4 34 58—90—06—131 yes 88—35—53—003 oo —amce CR Denal 60—toi ~—3j 58—00—06—131 yes 35—85—53.—003] es Escalade solLags _33 55—90—06—033 yes 35—85—53.003 ] 2002 Chevrolet —CK _ _ Silverado 150072500 48 —tRa —3.7 ~ 55—90—05—037 no 85—55—53—003 5.3 —LM7 3.4 58—90—06—039 no 88—85—53.003 8.0 —.LQ4 34 58—90—06—131 yes 88—85—53—003 Page 1 of 2

Exhibit A (E.0.# D—488—4) { ar Make Model Model Engine Pulley Dia. Pulley P/N Add Early Model Kit? 31—12—00—007 Tuner PN 2002 Chevrolet C/K Tahoe 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—003 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—003 2002 Chevrolet C/K Suburban 1500/2500 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—003 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—003 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—003 |2002 Chevrolet C/K Avalanche 1500 5.3 — LMZ 3.4 58—90—06—039 no 88—85—53—003 | 2002 GMC CIK Siema 1500/2500 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—003 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—003 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—003 | 2002 GMC CI/K Yukon 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—003 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—003 2002 GMC CIK Yukon XL 1500/2500 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—003 5.3 — LM7 34 58—90—06—039 no 88—85—53—003 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—003 2002 GMC CIK Denali 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—003 5.3 — LM7 34 58—90—06—039 no 88—85—53—003 6.0 — LQ4 3.1 58—90—06—131 yes 88—85—53—003 2002 Cadiliac Escalade 6.0 —LQg 3.3 58—90—06—033 yes 88—85—53—003 | | 2002 Cadiliac Escalade EXT 6.0 —LQ9 3.3 58—90—06—033 yes 2003 Chevroiei C/IK Sitverado 1500/2500 and HD Series 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 5.3 — LM7 34 58—90—06—039 no 88—85—53—002 (* ~ 6.0 — LQ4 3.1 58—90—06—131 no §8—85—53—002 | * .03 Chevrolet C/K Tahoe 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 [ 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002 2003 Chevrolet C/K Suburban 1500/2500 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 5.3 — LM7 3.4 58—90—06—039 no $8—85—53—002 6.0 — LQ4 3.1 58—90—06—131 no 88—85—53—002 2003 Chevrolet C/K Avalanche 1500/2500 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 5.3 — LM7 3.4 58—90—06—039 no * 88—85—53—002 6.0 — LQ4 3.1 58—90—06—131 no 88—85—53—002 | 2003 Chevrolet SSR 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002 | 12003 Chevrolet Trailblazer XL 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002 2003 GMC CIK Sierra 1500/2500 and HD Series 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002 6.0 —LQ4 3.1 58—90—06—131 no 88—85—53—002 2003 GMC CIK Yukon 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002 2003 GMC CIK Yukon XL 1500/2500 4.8 — LR4 3.7 58—90—06—037 no 88—85—53—002 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002 6.0 — L.Q4 3.1 58—90—06—131 no 88—85—53—002 [2003 _GMC C/K Envoy XL 5.3 — LM7 3.4 58—90—06—039 no 88—85—53—002| 12003 __GMC CK Denali 6.0 — LQ4 3.1 58—90—06—131 no 88—85—53—002 | £2003 Cadilfac Escalade 6.0 — LQg 3.3 58—90—06—033 no 88—85—53—002 | 03 Cadiliac Escalade EXT 6.0 — LQ9 3.3 58—90—06—033 no 88—85—53—002 | | 2003 Cadillac Escalade ESV 6.0 — LQg 3.3 58—90—06—033 no 88—85—53—002 | [ 2003 Hummer H2 6.0 — LQ4 3.1 Don‘t Add to S/O no 88-85—53-0042] Page 2 of 2


Document Created: 2005-09-01 12:42:05
Document Modified: 2005-09-01 12:42:05

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