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Hi-Flow cats?

CRUSTIN

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Does anyone know what gains, if any, there are from changing cats on an Alloytec 175?

If would be combined with a straight through exhaust, extractors, and tune.

Thanks in advance for relies.
 

Not_An_Abba_Fan

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Changing cats on the alloytec after fitting extractors is done more out of necessity than for performance. The original cats are too big to fit under the car and will have clearance issues.

Changing the whole system doesn't give you a very big gain, but it changes the torque curve, you will gain more bottom and top end and smooth out the acceleration right through the whole rev range.

I do the complete system for $1750 shipped. Hurricane tuned extractors, metal high flow cats, and a twin 2 1/4" into single 3" system. All bolt on, no welding required.
 
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