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Power in Pairs: Why Harley-Davidson
Riders Should Upgrade Camshafts and Exhaust Systems Together
When upgrading your Harley-Davidson® for serious performance, it’s not
about one part—it’s about how components work together. Two of the most
impactful upgrades you can make—camshafts and exhaust systems—deliver
even more power when installed as a performance package.
At TAB Performance, we offer premium parts that are designed to
complement one another, including the proven Zippers Red Shift 468 Cam Kit and our high-flow aftermarket exhaust systems. If you're building a
stronger, faster Harley, this combo is where to start.
Why Combine a Camshaft and Exhaust
Upgrade?
Each of these parts plays a unique role in engine performance:
- Camshaft: Controls valve timing—how and
when your engine breathes
- Exhaust System: Expels spent gases—determining
how efficiently it exhales
Individually, they make a difference. But together, they unlock
your bike’s true potential by optimizing airflow across the full cycle—intake
to exhaust.
How Exhaust Enhances Camshaft
Efficiency
An upgraded camshaft increases airflow into the combustion chamber—but if
your exhaust is still stock and restrictive, it bottlenecks that flow on the
way out. A high-performance exhaust system:
- Optimizes Air Flow
- Improves scavenging (how efficiently cylinders clear
out spent gases)
- Allows the camshaft to do its job
without obstruction
The result is stronger torque curves, better throttle response,
and more usable power across the RPM range.
Why the Red Shift 468 Cam Is the Ideal
Match
The Zippers Red Shift 468 Cam is a proven bolt-in upgrade for
107", 114", and 117" Milwaukee-Eight® engines. When paired with
a performance exhaust, it delivers:
- Massive gains in the 2,000–4,000
RPM range
- Immediate throttle response
- Optimized intake flow to match
free-flowing exhaust
- Smooth, confident power delivery
perfect for street and touring riders
It’s the smart next step when your exhaust upgrade leaves you craving
more.
Build Sequence: Exhaust First, Then
Cam
Not sure where to start? Here’s a smart progression:
- Install a performance exhaust
system – unlock airflow and sound
- Tune your bike (e.g., with Dynojet Power
Vision) – adjust for new AFR
- Add a camshaft upgrade – increase airflow timing
precision and torque
- Retune after cam install – maximize combined performance
gains
This path gives you stacked horsepower gains, better fuel
delivery, and full control over how your Harley rides.
Complete Your Combo with TAB
Performance Zip Kits
To make your upgrade seamless, TAB Performance offers a complete Zip Kit, featuring:
- Red Shift 468 Cam
- Matched components for easy
install
- Everything you need for a
hassle-free swap
- Ideal for riders pairing cams
with upgraded exhaust and tuning
It’s a no-guesswork package for unlocking real gains without piecing
together parts yourself.
Ready to Build a Smarter Harley
Performance Package?
If you've already upgraded your pipes—or are planning to—don't stop
there. Pair your exhaust system with a performance camshaft upgrade and
give your engine the breathing room it deserves.
Experience how true performance comes from working in sync.
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