I have mine sitting in my lounge room waiting to install them. I wanted to get feedback from anyone else who has a set of Brian's new headers. How do you like them? Has anyone had a chance to hit the dyno with them yet?

Im waiting for a exhaust manifold flange gasket from the stealership, then mine go on

 

you tell us!!

 

Will do... soon! I wish I had my own air tools and lift!

 

What kind of exhaust are u running? Hopefully not stock, becuz I had my stock muff with the headers on...and its hardly noticeable

 

I have the cattman catback going on at the same time as I put the headers on.
Figured I would get it all done in 1 go.

I just hope it doesnt annoy the girlfriend too much.

Steve, I know you have a straight pipe. Will the be a large difference in sound between your system and mine if I keep the cat?

 

Sweet! Glad to hear you went with the Cattman exhaust...you won't be disappointed in how unique it sounds...But the GF might get annoyed if u ask me....my setup is pretty damn loud for daily....it took me awhile to get use to it...and my Bose definitely has to be cranked up in order for me to hear it over my exhaust...haha

About the str8 pipe....I really don't know if there will be a large difference....Since I always had the str8 pipe on since the headers went on....but I say if there is a difference..it will be minimal....I got mine from Budget for $30 shipped...its like $35 shipped if you don't convert to american dollars

 

I just ordered the same set-up, plus the high-flow cat. Are you doing the install yourself, or paying someone to do it?

 

man i wish i had money for headers but i just spent money on a bbk for my max.

 

I have mine sitting my garage right now (the new ones that is)...can't wait to put it on...I am gonna put on a cattman catback and high flow cat at the same time so I should see a pretty good gain I hope!!!

 

Same, Im waiting for the install kit.

Im having it done professionally up at Maximum Tuning on Long Island. I hear that Jeff tunes a mean Maxima.

 

If I had the money then I would tell you how they are

 

Hey is your straight pipe making a higher decibal (more noise) vs any other setup? Most straight pipes I've heard on other cars make a noticable increase in noise, I'm just wondering how much more it would be on our cars. Maybe someone in your area with the same setup but stock cat could meet you to compare, with someone else with just a y-pipe and catback exhaust. So you could comeback and report here.

 

That is what I am hoping. Im keeping my Cat: 1. For emissions purposes and 2. hopefully it wont be AS loud.


Side question - What type of intakes are you guys running with your setups? I just purchased a Berk Apex-I Intake to replace my Injen. I miss my low end, and want it back!

 

Waiting on mine. I already have the Cattman catback. Headers should be here next week. It will be nice.

 

i just put in my test pipe and i have a y pipe and stock catback. honestly, it sounds close to 350z/G35c. the difference in the test pipe was substantial enough to notice the car is not stock. vq35 will sound slightly different, no?

 

Can you show me some pics of the headers you have? Cattman didnt have to many pics of the new headers.

 

Good question....but the only answer I can give u is this....Apex Intake, Cattman Headers, test pipe, Cattman bpipe, stock muffler....It is VERY quiet considering the HP u gain out of it....this is the setup I went for 1 day becuz I wanted to see how it sounds...and to be honest, I don't think it would get any more quieter with the stock cat in place...if it does, then it will be minimal...thats what I believe....however I dont have any #s or datas to back it up...but when I swapped it to the cattman muffler the next day...the car literally got 2x louder...this proves that the stock muffler plays a big role in sound deadening...

 

Good choice to keep your stock cat....u won't be missing out on alot of hp anyway...alot of people who have headers are dyno-ing with their stock cats in place and producing amazing #s....

I have the berk apex setup...i love it...dunno if I feel much of a low end lose....feels the same if u ask me....and it was a great idea for u to swap to a berk intake...injen intakes are located in a very hot area (near radiator)...

 

If you haven't done so already, you should dyno before and after.

 

Post a soundclip and evaluation atfter u install them all.

I like the sound of the Cattman catlytic converter to catt-back exhaust. PM Puppetmaster for a sound clip.

U can use this;
http://www.cascadeaudio.com/VB-1S_Pro_Tech.pdf
http://www.quietcar.net/?google
http://www.hushmat.com/
to reduce your noise lvl

 

 

I plan on it. Should be going to the dyno next week. Before headers get put on. Doing one last track visit too.

 

for another headere'd auto 3.5L.

 

Sounds like a good plan. I have to find a Dyno in my area.
How much do places usually charge for Dyno'ing ?

 

Depends on the aera.

But for comparison reasons, we use dynojet 248c.

Typically ~60-80/hour.

And 40-60 / run.

 

Damn right. Thing just dies near the end of the 1/4 mile.

 

Woot! Installation kit came today! Getting the headers put on thursday morning!

 

hey, can you post some pics of the headers before, during and after the install... i've never seen pics of the new headers yet. they are ss correct?

 

At which shop are you have them installed?

 

I don't think headers will produce ANY more performance in your car. Actually, I think you will loose hp.....my solution is that you just go ahead and send them to me, and I'll recycle them for you.

 

My Cattman Gen II Headers arrived Monday.

 

...more...

 

...more...

 

....more....

 

....more....

 

...last two....

 

6spd Hayes Nice .. lets get some dynos &/or track times.

 

Soon, very soon.

I had my baseline track run this past weekend. Baseline dyno will come soon. Then I will install them, then re-dyno, and see what I pick up in the 1/8th mile!

 

noice indeed!

 

The straight pipe will make a noticable sound difference. That is the reason I did not get one, and I feared I would get exhaust "popping" (HS Headers, HF Catt, Cattman Catt-back). I went with the Custom Maxima High-Flow Catt and that even had a noticable increased in sound, I can only imagine what the straight pipe would have done.

I am not sure if I remember correctly, but I think that 5.5gens with headers had problems with the stock main catt melting down on them...

My stock catt was fine on my 2000, I just wanted to change it and I was having sealing problems.