Autobahn88 Evo 1-3 dump pipe
- Thread starter VIN18M
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EV0300
Well-Known Member
i bought one similar to that the inside needed abit of a grind with the rotary tool but i've been using it for over 1 year with no issues only problem is they dont meet up with the stock elbow youi will have to get the elbow redone.
nigel_a
YR2SLO
i was looking at a few ealier and they were all the same. differnt brands but the items were the same. spoke to a tuner while over in nz and he said hes put a few on cars without any dramas.
Have a good search around on here, I looked into this like 2 yrs ago and one of the members who had a lot to go with meek said they put one on a car to compare to an Evo 3 dump pipe and it lost power so they put the evo 3 one back on. Take from that what u want, but look for the thread. I was in the thread so was “libero…someone” he was a senior member who used to be on here lots.
They were talking more about the merge angle as it come in at sharp angle. But even porting out an E3 O2 housing it still necks down to around 2 inch inside just upstream of the merge with the waste gate gasses come in but the area they merge can be ported close to 2.5 inch and the outlet to 2.5 inches. So its all a much of a muchness, if an E3 one is better it probably has more to do with the flow angles being smoother. But the ebay ones are made from 2.5 inch pipe apprently.
Remember the E3 O2 housing is much larger internally than and E1-2 and of course a vr4 02 housing. Also I wouldn’t pay the ridiculous price some aussie venders are charging for them! Look at American vendors.
They were talking more about the merge angle as it come in at sharp angle. But even porting out an E3 O2 housing it still necks down to around 2 inch inside just upstream of the merge with the waste gate gasses come in but the area they merge can be ported close to 2.5 inch and the outlet to 2.5 inches. So its all a much of a muchness, if an E3 one is better it probably has more to do with the flow angles being smoother. But the ebay ones are made from 2.5 inch pipe apprently.
Remember the E3 O2 housing is much larger internally than and E1-2 and of course a vr4 02 housing. Also I wouldn’t pay the ridiculous price some aussie venders are charging for them! Look at American vendors.
