4.0

definitely annoying
Typical Repair Cost:
No data
Average Mileage:
102,000 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. fix cracked exhaust manifold (1 reports)
2003 Infiniti M45 exhaust system problems

exhaust system problem

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2003 Infiniti M45 Owner Comments

problem #1

Oct 012009

M45 4.5L

  • 102,000 miles

A D V E R T I S E M E N T S

My mechanic says its a small crack. This is the second time this manifold has cracked. The last time we had a cracked exhaust manifold was on our 1981 Olds 98. I believe these problems shouldn't happen on modern cars. We've put over 230K on our Lexus and we never had a problem like this. I'm thinking of putting aftermarket performance headers, high flow cat and exhaust on this car.

- , Simi Valley, CA, USA

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