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Old 02-16-2007, 02:45 PM   #1
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Question exhaust + cai=dyno?

i have heard on some other sites, that if you do a full exhaust setup (headers, mid-pipe n catback) and do add a cai, you will need to get it dynoed. this is what i am plannin on doin in the next couple o months, so i kinda need to know. i didnt think you would need to, but some ppl were sayin it is neccisary. thanks guys.
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Old 02-16-2007, 02:46 PM   #2
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Re: exhaust + cai=dyno?

do you mean gettng a tune?
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Old 02-16-2007, 02:52 PM   #3
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Re: exhaust + cai=dyno?

CAI, no....headers maybe I guess...but not 100% sure. It does let in more air when you are N/A...so it kinda makes sense. But a CAI...no.
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Old 02-16-2007, 02:56 PM   #4
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Re: exhaust + cai=dyno?

with just a catback and a cai you will be fine, a dyno is always the best way to optimize your performance but... it is costly to perform one after every modification so just do it when it is needed or you are done with your upgrades
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Old 02-16-2007, 03:29 PM   #5
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Re: exhaust + cai=dyno?

You won't need a dyno tune. It's always good thing to have, but it won't be necessary.
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Old 02-16-2007, 03:54 PM   #6
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Re: exhaust + cai=dyno?

a dyno might make you depressed anyway when you see what exhaust/cai give you
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Old 02-16-2007, 03:55 PM   #7
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Re: exhaust + cai=dyno?

Quote:
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a dyno might make you depressed anyway when you see what exhaust/cai give you
But he is talking headers as well...which will soften the disappointment a little bit...not a lot...but a little.
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Old 02-16-2007, 04:18 PM   #8
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Re: exhaust + cai=dyno?

yea, im talkin bout putting on my bbk lts, a bbk midpipe and a cat back (possibly a lm2) and a cai all at once. so my question is should i have a dyno tune done so that im not going too lean or going to hurt the engine.
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Old 02-16-2007, 05:14 PM   #9
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Re: exhaust + cai=dyno?

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CAI, no....headers maybe I guess...but not 100% sure. It does let in more air when you are N/A...so it kinda makes sense. But a CAI...no.
do headers make that much of differ the A/F with these 99+?
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Old 02-16-2007, 05:23 PM   #10
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Re: exhaust + cai=dyno?

i dont have a dyno tune, and i have a lot more than exhaust/cai including headers. You should be fine.
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Old 02-16-2007, 06:48 PM   #11
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Re: exhaust + cai=dyno?

For what its worth you should have your car dynotuned as it stands, it is orange after all, and since that adds 11ty billion times the HP, ... You should get it tuned so you don't risk your pistons :pnoid:


Actually on the 04s, the stock mass air and PCM handles airflow changes much better than the 05+s do,if you mess with the mass air / mass air housing, I would then definitely say get it tuned..
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Old 02-16-2007, 06:51 PM   #12
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Re: exhaust + cai=dyno?

Quote:
Originally Posted by bluemustang View Post
do headers make that much of differ the A/F with these 99+?
No idea...I was kind of winging it.
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Old 02-16-2007, 07:04 PM   #13
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Re: exhaust + cai=dyno?

bastard haha i was about to say damn
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Old 02-16-2007, 07:19 PM   #14
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Re: exhaust + cai=dyno?

sweet. looks like i wont need to shovel out like $400+ just for the dyno. now i just need to know what the emmisions laws in pa allow as far as o/r x/y pipes n such.
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Old 02-17-2007, 02:44 PM   #15
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Re: exhaust + cai=dyno?

Offroad pipes will fail everywhere unless you get a lick and stick (which is illegal anyway). If you run highflow cats no one should give you any problems with passing, just make sure you get mil eliminators for the rear O2 sensors other wise you'll fail the OBDII test because your check engine light is on.
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Old 02-17-2007, 03:09 PM   #16
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Re: exhaust + cai=dyno?

hmmm....sounds ghey to me....
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Old 02-18-2007, 12:48 PM   #17
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Re: exhaust + cai=dyno?

hey just be thankful the states arent like Cali...now that sucks
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Old 02-18-2007, 01:30 PM   #18
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Re: exhaust + cai=dyno?

I've been hearing that PA wants to adopt Cali emissions laws.....if they do i'm moving....i don't want to deal with that crap
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Old 02-18-2007, 01:41 PM   #19
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Re: exhaust + cai=dyno?

wow I'm glad my car is registered in NJ
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Old 02-18-2007, 08:25 PM   #20
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Re: exhaust + cai=dyno?

Emissions?
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Old 02-19-2007, 01:05 AM   #21
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Re: exhaust + cai=dyno?

i thought i heard a rumor that pa wants to adopt a law that doesnt allow any exhaust modifications. just rumor of course.
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Old 02-19-2007, 03:36 AM   #22
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Re: exhaust + cai=dyno?

virginia does not allow any exhaust mods i got several tickets for my exhaust last year and im not even a damn virginia resident VIRGINIA SUCKS
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Old 02-19-2007, 11:03 AM   #23
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Re: exhaust + cai=dyno?

I hope that no exhaust mods is a rumor....i have full exhaust and im not taking it off, i'd take the tickets.....as for Virginia, they're way to strict about everything and anything....one of my friends at school moved here from Virginia and he loves PA law because its a lot less strict.....BTW radar detectors are illegal there and they are hardcore about catchin people with them. Plus they are crazy about giving out speeding tickets as well, they got me on my trip to SC last year.
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Old 02-19-2007, 03:39 PM   #24
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Re: exhaust + cai=dyno?

Quote:
Originally Posted by 1996stang View Post
virginia does not allow any exhaust mods i got several tickets for my exhaust last year and im not even a damn virginia resident VIRGINIA SUCKS
I have never had any cats and now I have straight 3.5" exhaust with a magnaflow muffler and no EGR or rear O2 sensors and Ive never had a problem I guess it all depends on where you live
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Old 02-19-2007, 11:13 PM   #25
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Re: exhaust + cai=dyno?

I live in bristol tn is what pisses me off tn does not bother you but va loves too see my car coming.The last time the trooper told me that even if i had cats that my exhaust would still be illegal because of the dumps before the rear end.
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Old 02-20-2007, 02:47 PM   #26
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Re: exhaust + cai=dyno?

Technically dumps are illegial in a a lot if not all states for street cars because the exhaust doesn't exit from under the body. Atleast thats the reason it would fail inspection in PA.
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