HEADERS Someone makes them.

[HayesPerformance]

..........And what difference in performance was noticed with those headers to the stock exhaust manifolds.

Dave

[ez112]

How did the installation go for the headers? Any clearance issues? And how did you go about attaching the downpipe? Did you use the factory pipe?

I didn't install them. They were done by Mike at Milzy Motorsports. But as far as clearnace goes, everything fits in there nicely. And no it does NOT use the same downpipe. They are collectors at the bottom, and I'm catless.

Do you have the revised headers now or the original prototype iwht 2" primaries?

I have the revised plus the ceramic coating. 1 3/4 primaries. Yeah I agree could have gone down to 1 5/8.

..........And what difference in performance was noticed with those headers to the stock exhaust manifolds.

Dave

I first dynoed at 181? Dynoed again and hit 192. But torque managment was being hit so I couldn't pull a high number without messing with the PCM. I'll dyno again soon.

[Kyles93Z34]

How bad does the engine compartment heat up? Just wondering, how much differant does it sound? Does it sound better or worse in your opinion? Did you run your 15.1 with or without them? And lastly, how is the quality on them? Thanks for your time.

Kyle

[ez112]

How bad does the engine compartment heat up? Just wondering, how much differant does it sound? Does it sound better or worse in your opinion? Did you run your 15.1 with or without them? And lastly, how is the quality on them? Thanks for your time.

Kyle

Well I'm not too sure on how hot the engine compartment is because I don't keep a thermometer in there :P But I have a modified PCM that turns the fans on and recirculates the air at an earlier time. Plus MY headers are ceramic coated to keep temps a LITTLE lower. I have a 180 degree stat that still does it's job well. Probably gonna go to a 160 because my car ADORES coolness.

Sound; it's a MUCH deeper sound than before. I personally like it. I have a video of an inside run but the video does not do justice. I have the video of when I dynoed too. I don't have to post it on my site right now but I'll get to it a little later.

That 15.1 was before a LOT of mods I have now. I'm staring RIGHT into 14's face, but when I went to the track I hit another 15.1 lol. I was running kinda hot AND it was hot. That 15.1 was on a cool cool day. It's kinda cold out now, I should go and see what's up. :P

Quality is very good. I lent my car to Milzy for a few months and he did a great job on them. I appreciate all the work he's put into my DOHC and these headers.