MAC prochamber H-pipe

Discussion in '2005 - 2009 Specific Tech' started by eromzek, Aug 11, 2005.

  1. eromzek New Member

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    Does anyone know what kind of power gains the MAC prochamber H can deliver? I know X's are good for 10-15 hp, but I was wondering if it was the same with an offroad prochamber. Thinking of goin with the prochamber midpipe with either magnapaks or jba's muffler
    eromzek, Aug 11, 2005
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  2. Mossberg Active Member

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    It should have the same gains roughly.
    Mossberg, Aug 12, 2005
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  3. s_odum Founding Member

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    I went from 269 RWHP to 286 RWHP with my off road pro chamber and an SCT xcalibrator 93 octane fuel tune.
    s_odum, Aug 14, 2005
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  4. "car"azy New Member

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    the complete kit sounds good, headers all the way back, they also claim their cai dosn't need tuning and puts down 16hp
    "car"azy, Aug 16, 2005
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  5. 85_SS_302_Coupe it sucks (I know) to be on the receiving end

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    Typical rule of thumb is that X's give a tad more top end HP with the same tad bit lost in low end torque, and visa versa for an H pipe. The Prochamber is something like a "wide open" X on the inside, only with H style sides...kinda hard to explain but its sort of like the two combined. I've read that on a 5.0 the gains are maybe a couple hp more than the other two, but you won't notice them anyways so pick what you'll like the sound of.
    85_SS_302_Coupe, Aug 16, 2005
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