Just installed DC Header
versionjdm,
Believe it or not, I've read every page in that thread, and the only dyno I've seen losing power was the one testing the J's. Not discounting anyone's statements, but can SOMEONE, ANYONE, PROVE that the DC Header loses power on a stock car (and be sure to say whether it was the stainless or ceramic.)
Thanks for your time.
Believe it or not, I've read every page in that thread, and the only dyno I've seen losing power was the one testing the J's. Not discounting anyone's statements, but can SOMEONE, ANYONE, PROVE that the DC Header loses power on a stock car (and be sure to say whether it was the stainless or ceramic.)
Thanks for your time.
Originally Posted by versionJDM,Oct 10 2006, 10:49 PM
i am about to sound like an asshole here but,
as one of the highest NA hp cars on the site, i think i know what im talking about here. his combo of aem cai, DC header, hks exhaust hes maybe +2rwhp over a stock s2. aem=+4, DC=-7, HKS=+5.
i dont want to sound like an ass and i never tout my #'s but please lets some of us older guys with more tuning knowledge help you out.
as one of the highest NA hp cars on the site, i think i know what im talking about here. his combo of aem cai, DC header, hks exhaust hes maybe +2rwhp over a stock s2. aem=+4, DC=-7, HKS=+5.
i dont want to sound like an ass and i never tout my #'s but please lets some of us older guys with more tuning knowledge help you out.

Anyhow, I learn much from you "older guys" so please don't think I'm against what you offer to the forum.
MAS
Originally Posted by zzyzxroad,Oct 11 2006, 07:46 PM
Sorry, versionJDM, I didn't intend to imply that you or anyone else with more tuning knowledge than me (i.e. practically everyone on this site) is wrong here. My intent was to say that regardless of the numbers, the OP feels like it made and improvement, so in my mind, that's okay. Yes, it's fine to give the OP the real numbers from those with experience because he challenged anyone who doesn't believe to a test drive.
Anyhow, I learn much from you "older guys" so please don't think I'm against what you offer to the forum.
MAS
Anyhow, I learn much from you "older guys" so please don't think I'm against what you offer to the forum.
MAS
Originally Posted by zzyzxroad,Oct 11 2006, 06:46 PM
Sorry, versionJDM, I didn't intend to imply that you or anyone else with more tuning knowledge than me (i.e. practically everyone on this site) is wrong here. My intent was to say that regardless of the numbers, the OP feels like it made and improvement, so in my mind, that's okay. Yes, it's fine to give the OP the real numbers from those with experience because he challenged anyone who doesn't believe to a test drive.
Anyhow, I learn much from you "older guys" so please don't think I'm against what you offer to the forum.
MAS
Anyhow, I learn much from you "older guys" so please don't think I'm against what you offer to the forum.
MAS
It would be nice if someone could meet up with me and they could test drive mine and could drive theirs to see how different it really is. If it did lose power and its in my head it couldn't have been much. Like I said before it was too inexpensive to pass up and try. Some day I would like to move up to the big boy parts but for now I will stick with what I have.
Anyone that wants to come by let me know!
Originally Posted by KnowledgeIsPower,Oct 11 2006, 09:44 PM
pr your lucky, around here its impossible to ge to testdrive an S....even you drive up in one
Originally Posted by versionJDM,Oct 10 2006, 06:50 PM
i think you missing something here. the DC header isnt new, it been dyno test 100 times and lost power all 100 times. sorry bro, truth hurts. 

This was a 2000 model, which benefits the MOST from the VAFC tune, and he only made 205 rwhp. Thinking the motor was really old and high miles? Nope - it had only 33k miles on the odometer.
Want to know what happened? The intake and header. They both are known to lose power, and without that VAFC2 tune he was probably in the 190 region, and that's WITH the single exit apexi exhaust AND megan test pipe that might've made back power. Without the exhaust and test pipe, he would've been in the 180s on a dynojet.
It's not that we're dogging him for buying a part and liking it, it's that he's making the car slower than it is in stock form. By all means, enjoy your header. Just make sure you get a tuning device and get it tuned by a professional so you can gain back your lost hp.
Originally Posted by afwfjustin,Oct 13 2006, 06:05 PM
Exactly. A local member by me had a PRM intake (loses power), OBX header (loses power), Megan test pipe, and apexi single exhaust. The intake and header were heat wrapped also. He had a VAFC2 (which is on my car now, and for sale) which was TUNED and only made 205 rwhp.
This was a 2000 model, which benefits the MOST from the VAFC tune, and he only made 205 rwhp. Thinking the motor was really old and high miles? Nope - it had only 33k miles on the odometer.
Want to know what happened? The intake and header. They both are known to lose power, and without that VAFC2 tune he was probably in the 190 region, and that's WITH the single exit apexi exhaust AND megan test pipe that might've made back power. Without the exhaust and test pipe, he would've been in the 180s on a dynojet.
It's not that we're dogging him for buying a part and liking it, it's that he's making the car slower than it is in stock form. By all means, enjoy your header. Just make sure you get a tuning device and get it tuned by a professional so you can gain back your lost hp.
This was a 2000 model, which benefits the MOST from the VAFC tune, and he only made 205 rwhp. Thinking the motor was really old and high miles? Nope - it had only 33k miles on the odometer.
Want to know what happened? The intake and header. They both are known to lose power, and without that VAFC2 tune he was probably in the 190 region, and that's WITH the single exit apexi exhaust AND megan test pipe that might've made back power. Without the exhaust and test pipe, he would've been in the 180s on a dynojet.
It's not that we're dogging him for buying a part and liking it, it's that he's making the car slower than it is in stock form. By all means, enjoy your header. Just make sure you get a tuning device and get it tuned by a professional so you can gain back your lost hp.
This header is freakin light and the airflow design is straight to the testpipe without all the extra bending like the stockone.
I take your guy's word on it that some may have lost power. One member on here also said he lost power from his J's header too though.
How many people can back up there words and post their dynos of losing power with the DC header? You said there were hundred's of tests done now I would like to see them on paper. You asked the same thing from me its only fair that you can show me the loss also.
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