Spelab NEWs

How to Clean a Diesel Intake Manifold: Step-by-Step Guide

Updated on May 8, 2026. A dirty intake manifold can restrict airflow, reduce throttle response, increase soot buildup, and trigger sensor or EGR-related issues—especially on diesel trucks like the 6.7...

Why Do You Need to Replace the EGR Delete Kit For 6.7 Cummins? How Often Should I Replace It?

The 6.7L Cummins engine is known for its power and durability, and can be driven over 300,000 miles or even up to 500,000 miles with proper maintenance.DPF and EGR systems...

SPELAB 2013-2018 6.7L Cummins Intake Manifold: A Technical Deep Dive

Unleash your 6.7L Cummins. Our ultimate guide details the SPELAB intake manifold's engineered advantages, from its +45% airflow gain and superior cooling to a step-by-step installation overview.

Why CCV Deletion Is Required for 6.7 Cummins Valve Cover Upgrades

Upgrading to a billet valve cover on your 6.7 Cummins requires deleting the stock CCV filter. Learn why this modification is mandatory and how it improves engine longevity and intake...

Is Upgrading Your 6.7 Cummins Intake Manifold Worth It? Fact vs. Fiction

Stop choking your 6.7 Cummins. We explain why upgrading the intake horn boosts airflow, lowers EGTs, and prevents the catastrophic grid heater bolt failure. See the CFD analysis proof inside.

6.7 Cummins Intake Manifold Leak Diagnosis & Repair Guide

Updated: May 15, 2026 If you own a 6.7L Cummins and the truck suddenly feels lazy, smokes harder than usual, loses coolant, or shows oily residue around the intake horn,...

Common Intake Manifold Related Fault Codes

April 26 2026 Update: This guide has been expanded with diesel-specific intake fault diagnosis, gas vs. diesel code differences, smoke-test steps, MAP/MAF data checks, and a repair decision tree to...

What triggers failures can a intake manifold upgrade for 6.7 Cummins cause?

6.7 Cummins intake manifolds not only affect the efficiency of air distribution, but are also directly related to the combustion performance of the engine. If not done properly, it can cause...

How to Choose the Right Intake Manifold for Your 351 Windsor Engine

Building a 351W? Discover whether you need a Single-Plane or Dual-Plane intake manifold for street performance. Plus, expert installation tips to prevent common oil leaks.

Why Does A New Valve Cover Still Leak Oil?