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4-2-1 versus 4-1 Headers #285446 Sep 26, 11:20pm Sep 26, 11:20pm
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4-2-1 versus 4-1 Headers
What the &$% is the difference. I know that one is four pipes into two then one and the other is four into one. What I want to know is what is the power difference for them? Thanks

Re: 4-2-1 versus 4-1 Headers [Re: Especial187] #285447 Sep 26, 11:44pm Sep 26, 11:44pm
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Usually, a 4-1 is good for top end gains only, while a 4-2-1 gives midrange and top end. Think of the 4-1 as an Injen CAI on a GTS, and the 4-2-1 as an AEM CAI. wink

Re: 4-2-1 versus 4-1 Headers [Re: Blue_Bomber] #285448 Sep 26, 11:51pm Sep 26, 11:51pm
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Thanks How can I get my low end torque up?

Re: 4-2-1 versus 4-1 Headers [Re: Especial187] #285449 Sep 27, 12:00am Sep 27, 12:00am
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To get great low end gains, you'd have to get a Turbo or better yet, an SC. If that's not an option, get an CAI like AEM or TPR and/or an exhaust like TRD or TPR. All four give decent low end gains, and are even better when paired together. The gains won't blow you away or anything, but they're better than stock, and will make daily driving a bit easier at low RPMs. smile

Re: 4-2-1 versus 4-1 Headers [Re: Blue_Bomber] #285450 Sep 27, 2:22am Sep 27, 2:22am
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A PFC will blow you away or rather blow the competition away from the low end torque it gives you.


I get my kicks on EC.
Re: 4-2-1 versus 4-1 Headers [Re: QTRMLR_1] #285451 Sep 27, 12:50pm Sep 27, 12:50pm
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Originally Posted by QTRMLR_1
A PFC will blow you away or rather blow the competition away from the low end torque it gives you.
How much torque at peak low end does the PFC give a stock car GTS, anyway? Haven't seen any dynos.

Re: 4-2-1 versus 4-1 Headers [Re: Blue_Bomber] #285452 Sep 27, 1:12pm Sep 27, 1:12pm
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I get my kicks on EC.
Re: 4-2-1 versus 4-1 Headers [Re: QTRMLR_1] #285453 Sep 27, 8:39pm Sep 27, 8:39pm
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Re: 4-2-1 versus 4-1 Headers [Re: QTRMLR_1] #285454 Sep 27, 9:05pm Sep 27, 9:05pm
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Not bad, but the TPR CAI/Exhaust combo is neck and neck with the PFC down low (and beats it by 5hp+ up high), plus they cost half as much (including dyno time) and won't void any warranties (PFC voids just about everything). wink

Re: 4-2-1 versus 4-1 Headers [Re: Blue_Bomber] #285455 Sep 27, 9:08pm Sep 27, 9:08pm
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Originally Posted by Blue_Bomber
Not bad, but the TPR CAI/Exhaust combo is neck and neck with the PFC down low (and beats it by 5hp+ up high), plus they cost half as much (including dyno time) and won't void any warranties (PFC voids just about everything). wink


Actually, they cost 1/4 as much. However, "Neck and Neck" Is kind of a dumb way to put it. The power FC is 10 times better than an Intake. I don't care which one. At the moment it is the SINGLE BEST MOD for our cars.

Re: 4-2-1 versus 4-1 Headers [Re: Blue_Bomber] #285456 Sep 27, 9:14pm Sep 27, 9:14pm
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if i was you i would get the true race header TPR is coming out with

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