C6 Corvette (Base / Grand Sport / Z06 / ZR1)
Big power, strong track performance, and tons of aftermarket support—the C6 still checks all the boxes.
This generation splits into two camps: narrow body and the widebody trio (Z06, Grand Sport, ZR1). And it’s not just looks—those differences directly affect fitment.
Launched in 2005, the C6 refined the formula with a tighter chassis, better balance, and improved steering feel, plus fixed headlights for a more modern look.
Narrow body cars run LS2/LS3, while widebody models step it up:
- Z06: LS7, 505 hp
- Grand Sport: LS3 + Z06 hardware
- ZR1: Supercharged LS9, 638 hp
Like any Corvette, wheels and tires are one of the first mods—so let’s break it down.
Factory Wheel Specs (Reference)
- Bolt Pattern: 5×120.65
- Center Bore: 70.3 mm
Narrow Body:
Front: 18×8.5 ET56
Rear: 19×10 ET79
Wide Body (Z06 / GS / ZR1):
Front: 18×9.5 ET40
Rear: 19×12 ET59
C6 NARROW BODY – Base / Z51
A. No Hassle – KEEP STOCK TIRE
Aggressometer: 0–10%
Simple, clean, no drama.
Suggested Fitments:
Square: 8.5 ET50–56
Staggered:
Front: 8.5 ET50–56
Rear: 9.5 ET55–56
C5 shown in Countergram 18x8.5" ET35 Front and 18x9.5" ET35
Recommended Wheels:
(No options)
B. Slight Flex
Aggressometer: 50%
More width, better stance. May need minor alignment tweaks.
Suggested Fitments:
Square: 9 ET45–52
Staggered:
Front: 10 ET58
Rear: 11 ET78
Recommended Wheels:
Aeris 19x9 ET42
F1M 18x9.5 ET 44
F1M 18x10 ET58
F1M 18x11 ET44
F1M 19x11 ET44
F3S 18x10 ET58
F3S 18x11 ET56
Hypergram 18x11 ET44
C. All The Wheel
Aggressometer: Full
Aggressive fitment—expect alignment work and possible liner contact.
Suggested Fitments:
Square: 9.5 ET42–48
Staggered:
Front: 10 ET58
Rear: 11 ET78
Recommended Wheels:
F1M 18x9.5 ET 44
F1M 18x10 ET58
F1M 19x9.5 ET44
F3S 18x9.5 ET44
F3S 18x10 ET58
F6SX 18x9.5 ET44
D. You’re on Your Own
Aggressometer: Extreme
Trimming, camber, and careful tire selection required.
Suggested Fitments:
Front: 10 wide ET58 Rear: 11 wide ET75
Recommended Wheels:
F1M 18x10 ET58
F3S 18x10 ET58
C6 WIDEBODY – Z06 / GS / ZR1
More room—but brake clearance becomes the limiting factor. Always test fit.
A. No Hassle – KEEP STOCK TIRE
Aggressometer: 0–10%
Clean, easy, no mods.
Suggested Fitments:
Square: 9.5 ET40–50
Staggered:
Front: 9.5 ET40–50
Rear: 11 ET55–60
Recommended Wheels:
F1M 18x9.5 ET 44
F1M 19x9.5 ET44
F3S 18x9.5 ET44
F3S 18x11 ET56
F6SX 18x9.5 ET44
B. Slight Flex
Aggressometer: 50%
Wider stance without maxing things out.
Suggested Fitments:
Square: 10 ET45
Staggered:
Front: 10.5 ET36
Rear: 12.5 ET56
Shown in F3S 19x10.5" ET36 Front and 19x12.5" ET56
Recommended Wheels:
F1M 19x10.5 ET36
F1M 19x12.5 ET56
F3S 19x10.5 ET36
F3S 19x12.5 ET56
C. All The Wheel
Aggressometer: Full
Maximized fitment without full bodywork.
Suggested Fitments:
Square: 10.5 ET40–45
Staggered:
Front: 10.5 ET35
Rear: 12 ET50–55
Recommended Wheels:
F1M 19x10.5 ET36
F3S 19x10.5 ET36
D. You’re on Your Own
Aggressometer: Extreme
Track/stanced builds only—mods required.
Suggested Fitments:
Front: 11 wide ET35 Rear: 13 wide ET50
Recommended Wheels:
F3S 18x11 ET36
Quick Reference Fitment Chart
C6 NARROW BODY – Base / Z51
| Category | Width | Offset Range |
|---|---|---|
| No Hassle | 8.5–9.5” | ET50–56 |
| Slight Flex | 9–11” | ET45-78 |
| All The Wheel | 9.5–11” | ET42-78 |
| YOYO | 10-11” | ET58-75 |
C6 WIDEBODY – Z06 / GS / ZR1
| Category | Width | Offset Range |
|---|---|---|
| No Hassle | 9.5–11” | ET40–60 |
| Slight Flex | 10–12.5” | ET36-56 |
| All The Wheel | 10.5–12” | ET35-55 |
| YOYO | 11-13” | ET35-50 |