Stiegemeier Porting Services

Stiegemeier Porting Services Pioneers of performance porting
35 years of experience
Over 6500 superchargers rebuilt We Are the Leader in Ported Eaton Superchargers and Rebuilds!

Flow tested performance! Often imitated, never duplicated!
3-5 Day Turnaround (typically)
7500+ Units Ported/Rebuilds to Date
Pricing ranges from $395 and up.

08/12/2026

Is your Chevy Cobalt SS supercharger making noise, losing boost, leaking, or simply ready for a complete refresh? At Stiegemeier Porting, we specialize in professional Chevy Cobalt supercharger rebuilds, including service for the Eaton M62 supercharger found on supercharged Chevrolet Cobalt SS applications.

Our complete supercharger rebuild service is designed to restore reliability, efficiency, and performance. Depending on the condition of your unit, service can include all new high-speed bearings, coated rotors, PTFE directional seals, inspection of critical components, and professional reassembly.

If you own a Chevy Cobalt SS Supercharged, Saturn Ion Red Line, or another vehicle using the Eaton M62 platform, proper supercharger maintenance can help protect your investment and keep your boost system performing as it should.

Need your Cobalt supercharger rebuilt or want to discuss performance options?

Stiegemeier Porting
Repair – Rebuild – Restore
📞 636-949-2275
🌐 Stiegemeier.com
📍 2140 S. Old HWY 94, St. Charles, MO 63303

Contact us before shipping your supercharger so we can discuss your application and service needs.

Take advantage of your inner cooler system by tapping into your heat exchanger and cooling your supercharger to produce ...
08/11/2026

Take advantage of your inner cooler system by tapping into your heat exchanger and cooling your supercharger to produce more horse power!

08/03/2026
We have a few ready to ship Verado superchargers. One is non water cooled and fits years 2004-2014. The other is water c...
07/31/2026

We have a few ready to ship Verado superchargers. One is non water cooled and fits years 2004-2014. The other is water cooled and fits years 2015 and up. Give us a call at 636-949-2275 or shoot us a message for pricing.

🚨 We're Going LIVE with Dyno Bob! 🚨Have a question about superchargers, porting, performance, or getting the most out of...
07/23/2026

🚨 We're Going LIVE with Dyno Bob! 🚨

Have a question about superchargers, porting, performance, or getting the most out of your build? Now's your chance to ask!

Drop your questions in the comments below and Dyno Bob will answer as many as possible during our next live session. Whether you're working on an SVT Cobra, Lightning, Hellcat, Verado, Mini Cooper, or another roots-style supercharger, we'd love to hear from you.

Topics can include:
🔹 Supercharger rebuilds
🔹 Porting & airflow
🔹 Pulley combinations
🔹 Performance upgrades
🔹 Troubleshooting
🔹 Horsepower goals
🔹 General tech questions

No question is too basic or too advanced—we're here to help.

👇Leave your questions in the comments and you might hear yours answered live!

Stiegemeier
Repair • Rebuild • Restore
🌐 Stiegemeier.com
📞 636-949-2275

Don't Replace It. REBUILD It.Get your supercharger performing like new with a professional rebuild from Stiegemeier.We r...
06/25/2026

Don't Replace It. REBUILD It.

Get your supercharger performing like new with a professional rebuild from Stiegemeier.

We rebuild:
✅ Eaton
✅ Whipple
✅ Mercury Verado
✅ Magnuson
✅ And most other Roots-style superchargers

Every full rebuild includes:
• All new high-speed bearings
• Coated rotors
• PTFE directional seals

Save money, restore performance, and keep your boost where it belongs.

📞 636-949-2275
🌐 Stiegemeier.com

Repair • Rebuild • Restore

⚡ M45 SUPERCHARGER REBUILDS ⚡Restore the performance and reliability of your MINI Cooper S R53 with a professionally reb...
06/23/2026

⚡ M45 SUPERCHARGER REBUILDS ⚡

Restore the performance and reliability of your MINI Cooper S R53 with a professionally rebuilt Eaton M45 supercharger from Stiegemeier Porting.

Repair • Rebuild • Restore

🌐 Stiegemeier.com
📞 636-949-2275

The Eaton M112 superchargers found on the SVT Cobra and SVT Lightning are legendary—but after years of service, they des...
06/19/2026

The Eaton M112 superchargers found on the SVT Cobra and SVT Lightning are legendary—but after years of service, they deserve the attention of experienced hands.

At Stiegemeier, we specialize in Supercharger Rebuilds to restore performance, reliability, and efficiency. Every unit is carefully inspected, rebuilt, and assembled to help get your vehicle back to performing at its best.

✅ Factory Spec Restoration
✅ Upgraded Reliability
✅ Precision Assembly
✅ Fast Turnaround

Whether you're maintaining a low-mile survivor or keeping your weekend warrior running strong, we're here to help.

📞 636-949-2275
🌐 Stiegemeier.com

Repair. Rebuild. Restore.

This M112 is on its way to Ohio!
06/17/2026

This M112 is on its way to Ohio!

🚨 GOING LIVE THIS FRIDAY AT 2PM CT! 🚨Join Dyno Bob as he goes live to talk all things 2003–2004 SVT Cobra! Have question...
06/03/2026

🚨 GOING LIVE THIS FRIDAY AT 2PM CT! 🚨

Join Dyno Bob as he goes live to talk all things 2003–2004 SVT Cobra!

Have questions about superchargers, porting, performance upgrades, rebuilds, or getting the most from your Terminator? This is your chance to ask and get answers live.

📅 Friday
⏰ 2:00 PM Central
📍 Live on the Stiegemeier Instagram Page

Drop your questions in the comments below or bring them to the live session!

Address

2140 S Old Highway 94
St. Charles, MO
63303

Opening Hours

Monday 7am - 6pm
Tuesday 7am - 6pm
Wednesday 7am - 6pm
Thursday 7am - 6pm
Friday 7am - 6pm
Saturday 10am - 5pm
Sunday 11pm - 5pm

Telephone

+16369492275

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