Intake System
Discover intake system technology, airflow optimization, manifold upgrades, cold air strategies, and practical tuning knowledge to improve engine breathing and throttle response.
6.7 Cummins Intake Horn Review: Fixing the Grid Heater Terminal Failure on a 74,000-Mile Daily Driver
Why did Youtuber @V-BELT and SON finally upgrade his stock 6.7 Cummins? Discover how the SPELAB Intake Horn eliminates the "killer bolt" risk and improves durability for daily drivers.
6.7 Powerstroke Intake Manifold Install & Torque Specs
Stop! Don't use foot-pounds on M6 bolts. This guide covers the critical inch-pound torque specs, the center-out tightening sequence, and why upgrading to an aluminum intake prevents future failures on...
Intake Manifold Maintenance Schedule: Inspection Intervals, Failure Signs, and Diagnosis
Don't wait for a check engine light. Follow our engineer-approved 10k/50k/100k mile maintenance schedule to catch leaks early. Plus, see why upgrading to aluminum is cheaper than repairing stock plastic...
6.7 Cummins Intake Manifold Guide: Diagnose First, Then Choose
Stop chasing dyno numbers. Discover the best 6.7 Cummins intake manifold for your specific lifestyle—whether you tow heavy loads, brave freezing winters, or just want better throttle response on your...
6.7 Power Stroke Cold Air Intake and Manifold Upgrade Guide
A mechanic's guide to 6.7 Power Stroke intake upgrades. Prevent plastic manifold cracks, optimize airflow, and lower EGTs under heavy towing.
Stock vs. Aftermarket: Why You Need to Upgrade Your 6.7 Powerstroke Intake Manifold
Stock plastic manifolds are a ticking time bomb. Our lead engineer breaks down the physics of failure—from hoop stress to thermal fatigue—and why upgrading to aluminum is critical for reliability.
SPELAB 6.7 Dodge Ram Intake Horn Review (2007–2024): Tested in Extreme Indiana Weather
YouTuber @Brandon24v tests the SPELAB 6.7 Cummins Intake Horn in extreme Indiana weather. Learn how to eliminate the "Killer Bolt" risk, unlock 88% more airflow, and ensure cold-start reliability with...
Chevy 350 Intake Manifold Torque Specs & Tightening Sequence (Diagram)
Don't crack your new intake! We provide the exact torque specs and center-out tightening sequence for Chevy 350 engines, plus a guide on choosing the right aluminum manifold upgrade.
The Best LS3 Intake Manifold for Swaps: Solving Hood Clearance & Retro Style
Struggling with hood clearance on your LS3 swap? Discover how a mid-rise, single plane intake manifold provides a low-profile fit, a classic carbureted look, and massive high-RPM power for your...
LS3 Intake Manifold Guide for Boost, High RPM, and Real Fitment
This technical guide explains why the SPELAB LS3 Hi-Ram intake is a necessary upgrade for high-boost or high-RPM builds. It covers the fluid dynamics of its short-runner design and the...
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