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Gpf delete pipe

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3.7K views 16 replies 7 participants last post by  Andy B  
J
#1 ·
Hello i have a GR Yaris RZ high performance from japan but it has a GPF which is confusing because i read on this forum that japanese car dont have one.

i wanted to know if the whifbitz gpf delete will fit my hks super turbo exhaust and if makes a huge difference in performance and sound.
 
#2 ·
Are there any O2-sensors at the lunpy bit of the exhaust under the car...? If so it's a secondary cat which Jap cars have. The OPF filter has no sensors (EU spec) however. If yours has no senaors it's irrelevant weather it's a secondary cat or OPF, still equally fine to remove in terms of car function.

exhaust values however... If that's relevant in Jamaica!
 
#10 ·
My GPF is OEM with i side gutted btw, why bother with new pipes when the stock one is perfectly fine, light and keeps the OEM look but with the added benefit of tiny performance? Just whack it with any long metal tool until it's free of all material (so that nothing comes off later and rattles inside)
 
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