Extreme Power, Extreme Scream

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     We specialize in:  GT500,  '03-'04 Cobra,  SVT Lightning,
           Plus JaguarCobalt/IonMini-Cooper,  and more
Sample GT500 graph
   
 

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icon Supercharger Porting
icon SC Front Drives
icon Supercharger Maintenance
icon Supercharger Rebuild/Repair
icon Supercharger Core Program
icon Cylinder Head Porting/Repair
icon Manifold Porting
icon Custom Carburetor Work
icon Throttle Body & Plenum
icon Fuel Injector Service
icon Exterior Show Polishing
icon Custom Tuning
icon Dyno Service

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Stiegemeier Porting Services, LLC
2140 S. Old Hwy 94
St. Charles, MO 63303
(636) 949-2275



** IMPORTANT WARRANTY INFORMATION

Supercharger Porting & Front Drive Rebuilds:
WARRANTY. One (1) Year on parts and labor. Excludes parts and materials not supplied by Stiegemeier Porting Services, LLC and/or labor performed by a third party. Warranty void if Front-Drive or Supercharger is further modified after leaving our facilities. Installation is the sole responsibility of the owner. Improper installation or modification voids warranty.

Technical Info

Check out the 5 Stages of GT500 Performance!

White GT500GT500 Graphs

Click each stage for more detailed information
Stage 1 500 RWHP Stiegemeier Tune - SCT XCal II device
Stage 2 525 RWHP Stiegemeier Tune plus Cold Air Intake
Stage 3 550 RWHP Stiegemeier Tune plus CAI + 2.6 Pulley + Idler
Stage 4 575 RWHP Stiegemeier Tune + CAI + Pulley + Idler + Stiegemeier Ported Blower + Throttle and Plenum + NGK plugs
Stage 5 600 RWHP Front drive reconfigured for 2.2 Pulley. 18-lbs of boost.



   
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