Well, the H-box goes over the stock AFM outlet...for the RX-7 one it's about the same diameter as the outlet. What I did was use a rubber coupler, took off the rubber seal piece off the the H-box so that it's just the plastic teeth things, then fit the coupler on it(hard to do because the couple is smaller but it's a tight seal) and clamped on the thin solid part. Works great.
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1994 Protege BP-Turbo.....1994 Miata Supercharged.....2003 Protege5 stock DD.....1988 323 GT Turbo
On the road soon: 2003 Protege5 V6 swap
My vB Gallery - Full Information and Photos of My Mazdas -
helmoltz resonator(H-Box)- 4 ft. lbs of torque dyno prooven loss when removed.
you choose to keep it or loose it. it is not a restriction it flows right through. it has a section for the TB idle air to be collected (thats the hosegoing to the TB)
The VAF is a restriction not the H-box.
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1992- project FE3..... 313 WHP @ 9.3psi
I pet my dash when I get into the car..."good car"he actually has a mazda tree, parts grow on it
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thank you everyone for all the input and now i know what it is and what it doesOriginally posted by bpt32302 msp clone gone but will never be forgotten
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