Stiegemeier Porting Services

10/14/2026

10/09/2026

Some Cobras we've worked on recently.

09/14/2026

Boating season is winding down.
Now is the perfect time to send in your Mercury Verado supercharger for service before putting your boat away for the winter.

Get it rebuilt now so you’re ready to hit the water when spring arrives.

📞 636-949-2275
🌐 Stiegemeier.com

Stiegemeier Porting — Repair • Rebuild • Restore

09/02/2026

Powder coating available!

08/21/2026

We offer our Venom Cooler modification for many different superchargers.

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.

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!

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.

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