Mertz Performance has provided meticulous and stylish automobile customizing to the Chicago, IL area since 2005. We provide modifications to engines, suspension, exhaust systems, electronics, lighting, and wheels. We also upgrade transmissions for high performance, tint windows and shave door handles.

We are also the only shop in the state that has a registered painless wiring harness installer. So when you need a custom car upgrade, call Mertz Performance. We can meet all your needs at prices you can afford.

SCROLL DOWN AND CHECK OUT SOME OF OUR PROJECT VEHICLES!!!!!!!!



     Our Automobile Customizing Services Include:

• Power Adders
  •   Nitrous Systems
  •   Superchargers
  •   Turbo
• Suspension
  •   Lifts
  •   Lowering
  •   Custom Air ride
  •   Performance aftermarket
• Engine Modifications
  •   Camshaft
  •   Heads
  •   Intake
  •   etc.
• Exhaust
  •    Headers
  •    Cat back systems
  •    Custom systems
• Brakes - aftermarket systems
• Electronics
  •     Audio
  •     Video
  •     Subwoofers
  •     Alarms
  •     Custom Speaker Boxes
• Lighting
  •     After-market headlights and tail lights
  •     Strobe lights
  •     LED lights
  •     Neon lights
  •     Under tailgate LEDs
• Transmission high-performance upgrade
• Wheels
  • Aftermarket rims
  • Factory replacement
  • Tires – tire repair, tire replacement and customized tires
• Window tint
• Shaved door handles

Don't see what you're looking for? Call us! We're open and flexible and will tell you honestly whether the automobile customizing you want can be done.

1999 CHEVY S10 FULL AIRRIDE LAYS FRAME ON 20"FORNT WHEELS AND 22" REAR WHEELS
FULL CUSTOM INTERIOR DASH BOARD, CENTER CONSOLE AND SEATS
SOON TO COME DROPPING IN SMALL BLOCK CHEVY ENGINE
 







2005 Hummer H2 Vortech Supercharger System

  2004 Corvette LS1 before pictures
Installing Procharger stage II system, Bassani Headers, BBK Intake w/80mm throttle body, and a little custom paint work

2004 GTO LS1 
Texas speed cam, fast intake, kooks headers, borla exhaust,
aem cold air system, custom tinted headlights and tail lights

1998 TOYOTA TACOMA
Body dropped, air bagged, custom built rear frame section

2000 ls1 camaro
ls6 intake, kooks headers, Strange S60 rearend, umi torque arm w/relocation

2007 GMC Sierra 1500

6" superlift 3" body lift

22" rims and 35" tall tires also custom leather seats

Picture below is before suspension lift

Picture below is after suspension lift

before body lift

2004 Silverado

Leveling kit with 16" rims and 35's