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For 1990-2009 cars only

Exhaust System Clearances 3800 VIN K w/o Y87/W68

Application

Millimeters

Inches

Catalytic Converter to Catalytic Converter Heat Shield

18

0.71

Catalytic Converter to Tailpipe

16

0.63

Catalytic Converter Clamp to Underbody

25

0.98

Exhaust Crossover Pipe to Frame Bracket And Screw

12-17

0.47-0.67

Exhaust Crossover Pipe to Underbody/Dash Panel

17-22

0.67-0.87

Exhaust Muffler to Underbody

24.5-29.5

0.96-1.16

Exhaust Pipe and Exhaust Heat Shield Extension

18

0.71

Exhaust Tail Pipe Extension to Rear Fascia (Chevrolet)

41.0 (±5)

1.61 (±5)

Exhaust Tail Pipe Extension to Rear Fascia (Pontiac Formula)

25.0 (±5)

.98 (±5)

Exhaust Tail Pipe Extension to Rear Fascia (Pontiac Trans Am)

34.0 (±5)

1.34 (±5)

Oil Pan to Exhaust Crossover Pipe

13-18

0.51-0.71

Left Side Tail Pipe to Underbody

14-19

0.55-0.75

Right Side Tail Pipe to Underbody

18.5-22

0.73-0.87

Tailpipe to Underbody

22-27

0.87-1.06

Exhaust System Clearances 3800 And 5.7 w/ Y87/W68

Application

Millimeters

Inches

Catalytic Converter to Catalytic Converter Heat Shield

27

1.07

Exhaust Crossover Pipe to Crossmember

10-15

0.40-0.60

Exhaust Crossover Pipe to Oil Pan

13-18

0.51-0.71

Exhaust Crossover Pipe to Transmission Oil Cooler Pipe

8-13

0.32-0.52

Exhaust Crossover Pipe to Underbody

7.5-12.5

0.30-0.50

Exhaust Muffler to Underbody

24.5-29.5

0.96-1.16

Exhaust Pipe to Exhaust Pipe Heat Shield

19-24

0.76-0.95

Exhaust Crossover Pipe to Underbody at Catalytic Converter

16-21

0.63-0.83

Exhaust Tail Pipe Extension to Rear Fascia (Chevrolet)

41.0 (±5)

1.61 (±5)

Exhaust Tail Pipe Extension to Rear Fascia (Pontiac Formula)

25.0 (±5)

0.98 (±5)

Exhaust Tail Pipe Extension to Rear Fascia (Pontiac Trans Am)

34.0 (±5)

1.34 (±5)

Front Exhaust Pipe

24.5-29.5

0.96-1.16

Tailpipe to Spare Wheelwell Tire Pinch

22.5-27.5

0.88-1.80

Tailpipe to Spare Wheelwell Tire Pinch

16.5-21.5

0.65-0.85

Tailpipe to Underbody

14-19

0.55-0.75

Exhaust Crossover Pipe to Reinforcement (Front)

13.8 (±3)

0.54 (±3)

Exhaust Crossover Pipe to Reinforcement (Rear)

23.1 (±3)

0.91 (±3)