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06-07 Chevy Duramax 6.6L Diesel EGR Block Off Plate

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This item is NOT FOR STREET, HIGHWAY, OR PUBLIC LAND OFF-ROAD USE and is intended ONLY for racing vehicles (non-street registered vehicles) operated on closed-course facilities or private owned land or racetracks. This item will not ship to California. If you purchase this item, you will be liable for proper use under ALL laws that pertain to this item under the EPA Clean Air Act Law. By purchasing this item, you further hereby AGREE TO INDEMNIFY AND HOLD HARMLESS THE RELEASEES from any loss, liability, damage or cost, including court costs and attorney's fees, that they may incur due to my participation in said activity, WHETHER CAUSED BY NEGLIGENCE OF RELEASEES or otherwise. SSM, will not be liable for any direct, indirect, incidental, consequential, or special damages, including but not limited to, damage, injury, loss of life, loss of property or equipment, loss of profits or revenue, or claims from any individual or entity arising from the use of any product.

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• This EGR Blocker Plate Is For 2006-07 GM 2500/3500 LLY & LBZ 6.6L Duramax Diesel Engines (Years: 2006, 2007). It easily installs on the EGR tube to shut off the "Exhaust Gas Recirculation" (EGR) flow back into the intake manifold. Plate is made from Stainless Steel. Plate DOES NOT fit 01-05

• In mid 2004 the LLY series was released. In 2006 the Duramax changed again. The early 2006 engines were still called LLY and the later 2006 and 2007 "Classic" models became the LBZ. This creates some confusion as the 06 LLY is distinctively different from the 04.5-05 LLY. The 2006 LLY and LBZ engines are essentially the same when it comes to modifications. We treat all 2006 as a LBZ as far as modifications.

The “Blocker Plate” is just as the name implies. It is an aftermarket-machined plate made to slide into the EGR exhaust connection flange to block off the flow of emission gases to the EGR. Some believe that this results in an internally cleaner engine due to no longer recirculating sooted exhaust gases through the engine intake to be reused during the combustion process. Some forum members report the following additional benefits when the plate is installed: A slight increase in MPG’s, a slight decrease in EGT temperatures, more engine power, quicker turbo spool-up and a slightly quieter running engine. A few members have also noted just the opposite.

Will installing the blocker plate cause DTC codes and a Service Engine Soon light?

Installing a Blocker Plate will cause the PCM to display EGR related DTC error codes due to the lack of airflow to the EGR. Forum members report that on vehicles with Federal Emission standards the SES light usually will not illuminate. On vehicles having CA and Northeast emission standards chances are the SES light will illuminate. The Override Circuit Stick can be installed to prevent DTC’s and SES illumination. It is still unknown as to exactly how / if the ECM compensates when the plate is installed without the Stick.

The Override Circuit is available thru us also.