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Thoughts about going 4" exhaust? Improved equal length header design?

Supercharged/Turbocharged The increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.
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Thoughts about going 4" exhaust? Improved equal length header design?

Old 08-07-2013, 06:06 PM
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Originally Posted by The Wizard View Post
We just started talking about it.

Now should we use the stock runners, cut off the rest, and fab up a custom manifold, with say a 3.5" TB and no EGR?

Modify a MEVI manifold?

Or build from scratch?
MEVI modifying? how?

Originally Posted by The Wizard View Post
Thanks for the links F&FMax, much appreciated.
It appears the 4" Ti fits!
I'm running the smallest pulley Vortech makes. I may run a 928motorsports pulley and go even smaller. Yes, I can still do cams, and yes I'm still a 3.0. I want to see what can be done with the ol' trusty 3.0 for now w/o going 3.5.
same here, i want to push the 3.0 to the limit and see how much it can take.

Originally Posted by speedymax99 View Post
very nice set up it look good on my old max
seen it in person already?

also, in for progress on this...
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Old 08-14-2013, 10:36 AM
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In for updates to this!
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Old 09-01-2013, 01:06 AM
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Exhaust clips?
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Old 12-15-2013, 06:28 AM
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What happened to this project?
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Old 12-15-2013, 06:04 PM
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Old 03-10-2014, 09:18 PM
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Vidz, sound clips, price, dyno, pics... We want more!
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Old 03-13-2014, 09:00 PM
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Sorry for dragging my feet on this fellas. I took delivery of the exhausts and stare at them everyday in my living room. Install should happen soon, just gotta catch up with a bunch of crap life has thrown at me lately. More pics, start up sound clips, drive by sound clips to follow...
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Old 03-13-2014, 09:26 PM
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I can't wait!

I know that feeling. Started moddn the '99se and life took a turn. Getting back on my feet with the gle and been hoarding parts to ease the pain of not driving it, but ya already knew that...
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Old 03-21-2014, 08:12 AM
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Old 03-21-2014, 09:35 AM
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We were talking about this on FB. Let's make it happen, cap' n.
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Old 03-24-2014, 10:57 PM
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If this works out I might be interested in going 4" rather than 3" on the beast.
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Old 04-02-2014, 02:34 AM
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wow sweeet looking kit..!!!!!
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Old 06-26-2014, 10:36 AM
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Old 06-26-2014, 12:52 PM
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Believe it or not, I may actually install this darn thing this weekend! A whole year in the making...
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Old 06-26-2014, 11:02 PM
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I would love a 4" cat-back if it has gains. The beast doesn't have anything on it yet. Just cattman headers/y and fast-cat.

Last edited by Quickywd01; 06-28-2014 at 10:09 PM.
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Old 06-27-2014, 01:45 PM
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man I can't wait, take lots of pics and sound clips. Will you be hitting the dyno too
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Old 06-28-2014, 10:08 PM
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Originally Posted by t6378tp View Post
man I can't wait, take lots of pics and sound clips. Will you be hitting the dyno too
Judging by his other stuff I think we'll get a healthy dose of each.
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Old 06-29-2014, 05:57 PM
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updates
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Old 06-29-2014, 08:18 PM
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It was 95 degrees here today. Finally cooling off and just minutes away from unbolting the 3" Cattman exhaust...
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Old 06-29-2014, 10:29 PM
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Can you fist your exhaust? LOL

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Axel back weighs in at 6lbs 12oz
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Each V-band weights 12oz

Bpipe weights 8lbs 2oz
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The whole 4" Ti catback weighs approximately 17lbs
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Old 06-29-2014, 10:39 PM
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4" Ti on the left, 3" SS Cattman on the right

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V-band goodness
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Old 06-29-2014, 11:02 PM
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Well, I've hit a snag. The canister is hitting the rear crash bar and won't go any higher. I guess I have 3 options. Get new exhaust hangers that are about 1/2" longer center to center (maybe these Nismo ones are shorter than OEM?), heat up and bend the exhaust hangar a little, or cut away some of the crash bar (there's a good 1/2" lip that could be easily grinded or cut off)...or maybe a combination of 2 or 3 things. What do you guys think?

On the bright side, it's looking good so far going over the rear beam.


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Old 06-30-2014, 12:19 PM
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I mounted the whole system but left the hangers out of the equation and supported the canister with a box. I determined that if I get exhaust hangers that are 1" longer, then it will mount up just fine.
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Old 06-30-2014, 01:20 PM
  #104  
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Pretty darn cool stuff...

Oooohhhh - shiny ! This is great work - and materials.
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Old 06-30-2014, 02:10 PM
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SOUND CLIPZ!1!!3!

It aint gonna hurt nuttin if the car is on for a min or so.
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Old 06-30-2014, 06:59 PM
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damn 17lbs for the whole exhaust is retarded. any pics of the exhaust over the axle beam while the car is on the ground under full weight, also how much are you dropped
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Old 06-30-2014, 08:32 PM
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17lbs

Would you mind weighing the Cattman 3" without the cat?
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Old 07-01-2014, 05:25 PM
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Thank you for doing this! Oh my gawd! I need... And people said a larger exhaust wouldn't fit. Imagine if the rear axle beam was made out of something lighter... So a Ti exhaust like that must cost about a bajillion dollars, perhaps there is a possibility one can be made out of something more affordable for us folks with less fortunate budgets. lol Do you happen to have any dimensions of it so one can try to bend one up? Btw for those of you asking about sound and dyno clips, can you handle the truth? I'm just happy this thing exists, period. Good work!
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Old 08-25-2014, 04:16 PM
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Well it's pretty much done. It looked great up on the lift, but once on the ground, I'm not feeling the gap between the exhaust tip and the bumper cover too much. Right now it's a finger gap. Will reduce it to half of what you see. The tip is too big as well, but maybe if I build a CF diffuser for this Max it will look more in place. Guess we'll see. My next project is a proper catch can.

Anyway, it does fit. There's about 3/8th inch of gap on both sides between this pic and the gas tank tie strap on the other side.

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Flash on camera
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This 4" system has absolutely no banging whatsoever compared to Cattman's poorly fitting 3" system. I did have to move the bracket for the Addco rear sway bar more towards the rear of the car, otherwise that would've banged the Ti system. I also added a snap ring ("E" ring) at the midpoint of the Bpipe to keep the system steady.
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Random pic of the canister
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Old 08-25-2014, 04:34 PM
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A few more pics.. Next up will be the videos

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Old 08-25-2014, 04:41 PM
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Looks BEAST!
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Old 08-25-2014, 04:43 PM
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Originally Posted by Maximeltman View Post
Looks BEAST!
Indeed. Thanks

Trying to upload sound clips to Youtube now...
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Old 08-25-2014, 05:12 PM
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When I get on it, the sound of this exhaust reminds me of F1 cars. The GoPro doesn't really do the sound justice IMO.

This first sound clip is literally the first time I ever started it up; hence why you see crap flying out the exhaust. It’s about 2 minutes and pretty boring, sorry. Should’ve revved it more. I haven’t started the Max in about 3 months, so the first minute there’s no action.

The second sound clip is me driving around a little. At one point, I go to redline! Can I get 3 oh yeeeaaah’s!! LOL

I’ll edit a 3rd video with just the redline pull uninterrupted. Maybe I’ll do a drive by pull too.

Keep in mind these are the first GoPro videos I have ever shot and edited. The corny video I made took more hours to edit than I care to admit. GoPro Studio software is a little clumsy.

Start up:
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Old 08-25-2014, 05:50 PM
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If you haven't seen Ferris Bueller's Day Off, you won't get some of the references made in my second video. LMK what you think of my cheesy video.

Unfortunately when uploaded to YouTube, some how static noise has been introduced into the video and the video quality has gone down too. Maybe I'll try to upload a higher res video to YT rather than taking the suggested "save as for YouTube quality" that the GoPro Studio software recommended.


Last edited by The Wizard; 08-25-2014 at 06:23 PM.
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Old 08-27-2014, 12:28 PM
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Very nice. Good job Wizzy. Thanks for sharing.
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Old 08-27-2014, 07:08 PM
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Sounds great!
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Old 08-29-2014, 10:58 AM
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Can't view the links what is your YouTube channel
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Old 08-29-2014, 12:21 PM
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Found it but can't view the 2nd vid
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Old 08-29-2014, 02:05 PM
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Originally Posted by t6378tp View Post
Found it but can't view the 2nd vid
You have to watch it on PC or download McPro if you have an iPhone. Not sure for android.
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Old 08-30-2014, 08:28 PM
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OK I'll try that
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