nissan720 Posted May 8, 2011 Report Share Posted May 8, 2011 i have a pacesettet header that.i have to change the gaskets on it about every three months.this is my daily driver.i think i will put the stock manifold and pipe back on it this header is just a pain in the butt.never had any problem with the stock exhaust. really could not tell that big of a difference in the performance any way. Quote Link to comment
datzenmike Posted May 8, 2011 Report Share Posted May 8, 2011 Exactly! A good one may not leak but they are expensive and you are still left with 'didn't make much difference' . I learned this back in the '70 with my 521. I wanted a header sooooo bad. Couldn't wait to burn down the road with all the new found power. Took most of the weekend to do and I had to remove one of the torsion bars, loosen the motor mount, and it didn't fit that well. This is in addition to removing the stock exhaust. What a disappointment! Made noise not hp. The collector/reducer bolts were constantly coming loose. Rusty looking in 4 months. Will never do this on a street motor. Headers are just like a spoiler on the street. No use at all. Quote Link to comment
Sealik Posted May 9, 2011 Report Share Posted May 9, 2011 I believe the good ones...ie....Doug Thorley...are about 500-600 bucks Quote Link to comment
Z-train Posted May 9, 2011 Report Share Posted May 9, 2011 My header is coming off in the near future.And we are going to have a side by side comparison to a stock manifold on a street motor(under 60000rpms). Quote Link to comment
HRH Posted May 9, 2011 Report Share Posted May 9, 2011 To Pacesetter's credit, I did have one on my '97 hardbody and it never leaked once. It was one of the best fitting headers I ever got. But seeing as I hadn't opened up the head, it didn't do that much for performance either. If it's on a Z24 motor, are you sure the nuts aren't just backing off? That tends to happen on those, particularly if you don't have the original nuts with the big special washer. Quote Link to comment
datzenmike Posted May 9, 2011 Report Share Posted May 9, 2011 My header is coming off in the near future.And we are going to have a side by side comparison to a stock manifold on a street motor(under 60000rpms). I'd like that even if I have to eat a little shit for my comments about headers. The more modified the motor the more you will get out of them. I think the stock manifold is good enough but never hurts to have some numbers. Quote Link to comment
HRH Posted May 9, 2011 Report Share Posted May 9, 2011 Headers are still good for 15%, but that's largely dependent on flow and compression, imo. I'd like to see a dyno comparison also. Quote Link to comment
Guest kamakazi620 Posted May 9, 2011 Report Share Posted May 9, 2011 ID never run a header on an l series but I gots a pacesetter for the ka, it has a thick flange ima hoping I dont get leaks Quote Link to comment
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