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Discussion Starter #1
any idea what JAMSA is, as the blokes at seven valley loved my exguast but it was on the car when I had it so I don't know what it is, and did not like to ask them
 

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An exhasut gets jasma ratings if it passes certain emission and sound tests. It has nothing to do with performance or design... What make and model exhaust do you have??:confused:
 

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Discussion Starter #5
HKS hiper or something like than, not 100% sure does that make sense to you, I know its a full system with manifolds and downpipes
 
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