I need help to buy headers for My IS350
#1
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Join Date: Jan 2015
Location: Oman
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I need help to buy headers for My IS350
Hi guys
I was wondering from where i can buy PPE Headers from dealer who can ship it to Oman??
& have anyone installed MagnaFlow 49 State Converter 49285 ,49284 Direct Fit Catalytic Converter headers? I am planning to buy it & install it
Is it beater than PPE?
I was wondering from where i can buy PPE Headers from dealer who can ship it to Oman??
& have anyone installed MagnaFlow 49 State Converter 49285 ,49284 Direct Fit Catalytic Converter headers? I am planning to buy it & install it
Is it beater than PPE?
Last edited by AlShaqsi; 01-22-15 at 04:50 AM.
#3
Yea this is a real head scratcher, how have we never heard of magnaflow headers with built in cats? For both the 250 and 350
#4
Those aren't really headers. The tubes are too short and there will still be a good amount of reversion between cylinders. Also the lengths are incorrect for any wavelength tuning. The cat also chokes down some power. I doubt there would be much gain over stock. It would be a good replacement for a bad stock catalytic converter, but not really a performance part.
Also, they are sold per side. They are over $1100 for the pair.
#7
http://www.coneeng.com/results.html
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#10
Lexus Test Driver
iTrader: (2)
I'm still looking for answers from PPE....
1) A dyno graph from ~2k on up on 350 sized primaries.
2) Is there an actual 250 sized primary and what are the actual ID or OD of the 350 vs 250??
3) My point is that DD isn't at 6k all that long and if a 250 sized primary on a 3.5liter engine provides improved mid-range, it may be the better choice and still potentailly have the same peak HP...
In wonderland I'd like to see an IS-350 fitted with 250 headers (assuming they build them) and compare the bottom up curve.... Hell, I'll pay for the dyno runs, you supply the headers!
1) A dyno graph from ~2k on up on 350 sized primaries.
2) Is there an actual 250 sized primary and what are the actual ID or OD of the 350 vs 250??
3) My point is that DD isn't at 6k all that long and if a 250 sized primary on a 3.5liter engine provides improved mid-range, it may be the better choice and still potentailly have the same peak HP...
In wonderland I'd like to see an IS-350 fitted with 250 headers (assuming they build them) and compare the bottom up curve.... Hell, I'll pay for the dyno runs, you supply the headers!
#11
Moderator
iTrader: (10)
I had that same question in my head when I was header shopping; but after some research of my own, I went with the 350-designed specific headers. I'd hate to have any sort of choke points in my exhaust. But we also need to be mindful to not remove any savaging effects from "up-sizing" the piping too large. I'm sure their current piping diameters are on-point.
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