LFarr

Anyone have actual experience with OBWD and actual performance improvement ??

I'm running Gil Magnum's, 4" exaust, 10# boost thru 500 inch BBC at 5500 rpm.

Would be intersted to know if you have actual experience reducing the amount of water put through the exaust by using OBWD to bypass some of the water.

Thanks

electrical1

I Was Wondering The Same Thing But For A Different Reason. I Was Wondering By Bypassing Some Of The Water Going Through The 4" Exhaust Tubes, If The Motors Would Run Cooler By Reducing Any Back Pressure (if Any). There Are Only Small Holes At The End Of The Exhaust Tubes That The Water Finally Go Out.
There Is A Perfect Spot Where The Stainless Headers Meet The Exhaust Tubes There Is A Rubber Hose That Allows The Water To Flow From One To The Other. (just Wondering)