Headers?

[Bolestuff]

What headers are considered the best fitment and price out there for the ix?

[Bolestuff]

Wow, thanks for the input everyone! I just bought the miller MAF, 19lb injectors, and some headers. With the signature motorsports cai, magnaflow muffler, and a chip I think the gains should be great. Anyone running a similar setup?

[TehRaydarlover]

I don't think there are too many restrictions with headers for the ix, so whatever is the best price/fitment for a normal e30. I just have stock now but am thinking about some bravauto ceramic coated long tubes. The only thing to worry about is the cv boot getting too hot and prematurely failing, hence ceramic coated.

[WarHammer 2/1]

I don't think there are too many restrictions with headers for the ix, so whatever is the best price/fitment for a normal e30. I just have stock now but am thinking about some bravauto ceramic coated long tubes. The only thing to worry about is the cv boot getting too hot and prematurely failing, hence ceramic coated.

You know about the bavauto header group buy going on right now?

[TehRaydarlover]

Yeah I saw that. Not quite ready for performance upgrades yet, still working on maintenance.

[Bolestuff]

Thanks for the input, I have the car in the shop right now getting headers and a new high flow cat!

[Bolestuff]

Headers help this car all over the place!

[Bolestuff]

Just got my Miller MAF and 19lb injectors, should get about 20hp to the wheels. I will dyno and report back my numbers.

[nando]

Youre dreaming if you think youll get 20whp, but enjoy.

[fresh_TD]

So how about those dyno results?? What i did was match port everything..head, intake/exhaust manifolds..runs great

Sent from my GS4 Active

[Bolestuff]

Youre dreaming if you think youll get 20whp, but enjoy.

This is from Miller https://www.millerperformancecars.co...III%202.5L.pdf

I called them out on it and they admitted it was more like 15, but that is with the old 14.5 single port injectors. Regardless, I will post a dyno run of my own in a month or so. So I guess dreaming is not really accurate. What kind of gains are you thinking?

[nando]

Id be impressed if you break 150whp on a dynojet

Not hating on you, I'm sure it will be an improvement, but 20whp on an ix is a big task from a small motor.

[ForcedFirebird]

Id be impressed if you break 150whp on a dynojet

Not sure about with the Miller stuff, but I just got well over 150 with RD headers, one of our stock rebuilt heads, and our dyno chip tune. No porting, stock AFM etc. 200+k mile bottom end RWD e30, so an ix will be lower.

EDIT: 155.26whp/154.16wtq as you can see, the chip was only worth about 2whp/3wtq.

[nando]

Yeah but this is an ix, that puts down maybe 140whp stock. Eric Johnson's only put down 125. I saw a 3 liter IE Stroker do 150 (needed a tune, but still).

20Whp is just nonsense. That would be ~200 at the crank on an otherwise stock motor. It doesn't pass the BS test.

[ForcedFirebird]

Yes, my point exactly. I have tuned numerous cars on the dyno, we have thousands of graphs just from this year alone, the only time we saw any kind of big gain was on my personal car which went from 124whp to 148, but that's because the WOT switch on the TPS is broken and instead of changing it (being lazy), just tuned it out lol.