Spelab NEWs
Get the latest SPELAB product releases, engineering updates, testing insights, industry trends, and company announcements for performance-focused automotive enthusiasts.
9 Real Signs Your Differential Cover Needs Replacing
Updated on August 21, 2026. TL;DR: Not every reason to consider an aftermarket differential cover means your current one has actually failed. This breaks the real signs into two groups:...
How to Change Dana 35 Gear Oil and Seal a Differential Cover
A step-by-step guide to changing gear oil and sealing a Dana 35 differential cover, with expert insights on leak prevention, proper sealant use, and easier maintenance with aftermarket upgrades.
Aluminum vs Steel vs Cast Iron Differential Covers: Which One Fits Your Truck?
Aluminum cools better, steel takes hits, and cast iron is heavy. Engineer John Lee explains which diff cover material is right for your build in this updated 2026 guide.
Best Aftermarket Differential Cover for Ram 2500: Solve Overheating & Leaks
1. Why Upgrade Your Ram 2500 Differential Cover? Your Ram 2500’s differential cover plays a crucial role in protecting gears and maintaining proper lubrication. However, the stock cover has several...
Solving the Carbon Deposit Problem: EGR, Intake, or Both?
1. Introduction When upgrading a 6.7 Cummins engine, a common topic of discussion among owners is whether to delete the EGR system or upgrade the intake horn. The issue of...
6.7 Cummins Billet Valve Cover vs Cast Aluminum Valve Cover: Which Upgrade is Right for You?
Updated on January 8, 2026 TL;DR: The stock 6.7L Cummins plastic valve cover warps and leaks due to thermal fatigue. Upgrading to aluminum solves this. Billet aluminum offers superior strength, heat...
6.7 Cummins Grid Heater Delete or Upgrade: What Ram Owners Should Know
Updated July 13, 2026. If you own a 2007.5-2024 Ram 2500, 3500, 4500, or 5500 with the 6.7L Cummins, the factory grid heater is one of those parts you may...
![Best 6.7 Cummins Intake Horn: SPELAB vs. Banks Monster Ram [Dyno-Tested]](http://www.spelabautoparts.com/cdn/shop/articles/Best_6.7_Cummins_Intake_Horn_SPELAB_vs._Banks_Monster_Ram_Dyno-Tested_c9c2c3d3-5bde-4a00-a626-5eb351b542dc.webp?v=1790238524&width=1400)
Best 6.7 Cummins Intake Horn: SPELAB vs. Banks Monster Ram
Updated on September 24, 2026. A larger intake horn can reduce intake-side restriction on a 2007.5–2024 Ram 6.7L Cummins, but the benefit is often modest on an otherwise stock daily...
6.7 Cummins Intake Horn Guide: Fitment, Airflow and Grid Heater 2026
Stop choking your 6.7 Cummins. We rank the top intake elbows for 2025, explain the physics of 45° airflow, and show you how to fix the deadly grid heater bolt...
6.7 Cummins Intake Diagnosis: Gasket, MAP, IAT & Grid Heater
Hearing a hiss, seeing low boost, or getting bad MAP/IAT data? Use this diagnosis-first guide to check leaks, sensors, grid-heater hardware, wiring, and intake components before replacing parts.
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