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Which headers to fitt


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Posted

Hi guys thinking of changing my exhaust headers but not sure which ones.....dont understand do i go for equal or un equal. Can anyone throw some light on it for me?

Posted

As far as I know equal headers give you a couple of bhp more but you lose the distinctive exhaust note that the un-equal headers gives you, personally I prefer the exhaust note as the power gains are minimal

Posted

From my understanding you get more power from equal length headers but lose the burble of the flat four, but as proved by one of our members you can get this burble back by having a firestorm back box put on !!!!!!!!!!!!

Depends on if you can live without the burble !!!!!

Tony

Posted

I have a set of HKS headers fitted to my 94wrx. On a remapped car, headers can give about 15bhp and upto 25lb torque.

Pros- extra bhp and torque, lower boost needed to reach same power as standard headers as greater flow, superbike sound when at full throttleface-icon-small-happy.gif

Cons-loss of the flat four rumble at high revs(listen at low revs, it is still there!) later spool on the turbo compared with standard headers, can be expensive

People in the USA have run 500bhp+ on standard headers.You could always port the standard headers for better flow whilst still retaining the burble and spool of the standard car.

Hope this helps

Nathan

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