SPELAB Exhaust Header for 1997-2001 Chevy Blazer GMC Jimmy 4.3L V6 Duramax Downpipe 7L Powerstroke owners upgrading crankcase

7L Powerstroke owners upgrading crankcase ventilation

Hot exhaust gasses are not being re-routed back into the motor

The SPELAB Cool Radiator is built with a high-efficiency core that has more fins per inch

turbo response

A4:The SPELAB Typhoon Intake Manifold is designed to significantly enhance both top-end power and low-end torque

SPELAB Exhaust Header for 1997-2001 Chevy Blazer GMC Jimmy 4.3L V6 Duramax Downpipe 7L Powerstroke owners upgrading crankcaseSPELAB Exhaust Header for 1997, 1998, 1999, 2000, 2001 Chevy Blazer GMC Jimmy 4. 3L V6 Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. SPELAB offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt on, no modification needed. Fitment: 1997