View Poll Results: Best of the Best Headers
RRM
86
49.14%
RPW
58
33.14%
Kamikaze
31
17.71%
Voters: 175. You may not vote on this poll
Headers!! RPW or RRM
Apr 25, 2005, 09:21 AM
#121
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Originally Posted by frchgl123
The RRM header seems to make a horrible connection to the downpipe flange. There are many posts about how bad the exhaust leak is. I can testify this because I have the rrm header. Even with the stock downpipe, the flange on the header seems to be warped and blows out the gasket. I don't know about the RPW header/downpipe, but have only heard good things from other members regaurding fitment and gains. RPW in my opinion....
And when I am talking about warping it is SLIGHT, like you probably would notice it unless you put a straight edge on it. Just a tweak is enough to blow out the 1/16" stock gasket.
Apr 25, 2005, 11:29 AM
#122
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^ I need to grind the flange down alot. It has to be the header because when I used the stock downpipe, it made a leak in the back (~1in') and didn't notice one in the front. Now with the Buschur downpipe it makes the same leak in the back and a minor on in the front. I see what your saying about using a thicker gasket. I use the Mitsubishi metal ones. The DP came with some gaskets that don't even line up but they are pretty thick, they have like an extra thick ring around the middle of the gasket. Maybe just manipulate it to make it work. ^That is a good idea to why the flanges warp. I was thinking, from working with metal, that maybe when the header gets welded to the exhaust flange it is soo close to the edge of the flange that maybe the heat from welding causes it to tweak a small amout. No very hard to do. I just hope I am not losing a large amount of torque because of this. =[
Apr 25, 2005, 02:38 PM
#124
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Never heard of a bad connection with our headers. All flanges are CNC cut now. That is better than laser cut! If it is a problem send it to us. If there is something wrong we will handle it no problem. The flange is even threaded for a perfect fit. Maybe you crossthreaded a bolt or something.
ROAD/RACE
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Apr 25, 2005, 02:49 PM
#125
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^There's another thread about this problem, so it isn't unheard of. Even Airlinevomitbag had a good idea to way it happens. I really don't think it is a big enough problem to send it back. I guess that Mitsubishi gaskets are just too thin to hold up... Works fine with a bigger gasket in there. Feels like it drives better too now! I'm done on this thread, way too much off topic. To see the exhaust leak thread, advance search "rrm header"
Apr 25, 2005, 02:53 PM
#126
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Glad that is handled. I think our header does not make a horrible connection but rather as these cars get older, the likelyhood of being able to reuse the gasket get less and less. Thanks
ROAD/RACE
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Dec 11, 2005, 12:37 PM
#127
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bringing this back from the dead for a sec.
having ridden in a car with both the types of headers i can honestly say i was vastly more impressed by the rpw. it pulled harder imho.
having ridden in a car with both the types of headers i can honestly say i was vastly more impressed by the rpw. it pulled harder imho.
Dec 13, 2005, 03:52 PM
#129
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Ok please dont hate on this newb for not searching, but i was reading a thread earlier where someone said that they had no CEL with the rpw headers. I think it was due to the 02 connection being higher up and further from the cat. I also read a thread awhile back saying that RRM is now offering a CEL fix for free with their headers. Any word on either of these things? Headers are a few months off for me, but no CEL would be nice
Dec 13, 2005, 04:23 PM
#130
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i got the RRM header in my car. when i first put it on i noticed the power from 3k rpms up, right where the normal lancer power band starts normally. it pulls harder all the way to redline, and no lowend torque seemed to be lost. Peak hp number aren't everything. what really matters is how soon and how long you stay in that power under the curve. i'd like to see some comparison dynos
Dec 14, 2005, 08:20 AM
#134
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Originally Posted by Blacksheepdj
Both are basically true.
To be honest, CEL is kinda luck-of-the-draw. Some folks get it, some don't.
To be honest, CEL is kinda luck-of-the-draw. Some folks get it, some don't.
You can also pick up an o2 simulator, or do the spark plug defouler trick. But I would decide on what headers are best for you, then wait and see if you get a cel. if you do, its easy and cheap to fix