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      08-04-2011, 03:20 PM   #34
Cal@Sonic MS
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Drives: bmw
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Quote:
Originally Posted by inagua View Post
love the sound of the GTM cat back system but the HP gains of the full race system. Dont want to "tune" out the CEL.
Any idea of the HP gains with just the cat back system.
As stated in the OP, the axle back system by itself is good for plus 5-7 whp | plus 3-4 foot/lb tq.