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Review on MagnaFlow 99135HM Universal Catalytic Converter by Marco Wilson

Revainrating 1 out of 5

Bought for my Pontiac Grand Prix GTP

This thing was very cheap so I decided to give it a try as their mufflers sound good but that was a mistake. I installed it and less than a month later it burned out and deteriorated. I will not recommend this product to anyone

Pros
  • Catalysts
Cons
  • Cons