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Old 09-29-2004, 09:06 PM   #1
Caplin 2.5
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Default 2.5rs exhaust

Ok so far the only exhaust systems i found for my car are the JIC, Apex'i, HKS sport exhuast, and the Blitz nur spec rear section only. which one will give me the better louder sound?
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Old 09-29-2004, 09:12 PM   #2
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Better and louder should not always be in the same sentence. If you want better, go Stromung, If you want louder, some of the Japanese grapefruit shooters shall suit you. Brian
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Old 09-29-2004, 09:13 PM   #3
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ok which one would be louder? Also what type of N/a upgrades can i do to get my car up to atleast 190 or 200 hp?
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Old 09-29-2004, 09:30 PM   #4
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Quote:
Originally Posted by bheinz57
If you want louder, some of the Japanese grapefruit shooters shall suit you. Brian
learn to read.

190 to 200 hp?

do nitrous. you wouldn't be able to do it any other way so... yeah just do nitrous.

if you want true n/a upgrades and that much power you'll have to do cams.
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Old 09-29-2004, 09:49 PM   #5
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i'll throw Brullen into the mix... it's definately not the cheapest (maybe the most expensive ), but it definately sounds niiiice, and you can get them in varying sound levels.
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Old 09-30-2004, 12:25 AM   #6
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well if you want 190-200 crank hp, that is easily obtainable. if you want wheel hp, it will be harder, and much more expensive. to get that with who you will need at least:

equal length headers, highflow cat
cat back exhaust
COBB Cold-Air intake
Liteweight or UD pulley
COBB Spicey or TWE Stage 2 cams
COBB or TWE heads
TWE Super stock pistons
porting and polishing
bumped up redline, with engine managment such as Hydra. With these mods Hydra will easily gain you 15+ hp.

If I estimate correctly than that will put you around 200-215 whp all NA. but that will cost upwards of $8000. Talk to Matt Monson, or Trey from COBB. They will know more im sure.
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Old 09-30-2004, 01:31 AM   #7
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MRT makes some very pricey, but w/ good gains, headers.

Quote:
Originally Posted by Crash477
If I estimate correctly than that will put you around 200-215 whp all NA. but that will cost upwards of $8000. Talk to Matt Monson, or Trey from COBB. They will know more im sure.
Steven
You estimate incorrectly. Look at some of the old 200whp threads... its tough to make happen.
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Old 09-30-2004, 01:39 AM   #8
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Thumbs up Blitz Nur Spec Rear Section

I got my 2.5 RS a Blitz Nur Spec Rear Section and then I got a 3"inch pipe all the way before the cat. I tok off my stock 1.5 pipe and resonator.
You'll love the DEEP Sound of it. And by the way once you have install it, drive it first on the side street and you'll be amazed on other peoples car the way they greet you with a "CHIRP"......(Alarm Goes Off).....lol
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Old 09-30-2004, 01:40 AM   #9
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Quote:
Originally Posted by Caplin 2.5
Ok so far the only exhaust systems i found for my car are the JIC, Apex'i, HKS sport exhuast, and the Blitz nur spec rear section only. which one will give me the better louder sound?
I got my 2.5 RS a Blitz Nur Spec Rear Section and then I got a 3"inch pipe all the way before the cat. I tok off my stock 1.5 pipe and resonator.
You'll love the DEEP Sound of it. And by the way once you have install it, drive it first on the side street and you'll be amazed on other peoples car the way they greet you with a "CHIRP"......(Alarm Goes Off).....lol
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Old 09-30-2004, 01:50 AM   #10
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I think what i had above should easily get him to 200 whp.
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Old 09-30-2004, 01:24 PM   #11
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Quote:
Originally Posted by Crash477
I think what i had above should easily get him to 200 whp.
No way in hell.

This has been covered at least a billion times. 200whp = ~ 275-280bhp.

Show me how your mods add up to that.... Cobb themselves only claim 190 bhp for their stage 3 kit, IIRC.
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Old 09-30-2004, 01:41 PM   #12
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well if you look at Matt Monsons dyno he is getting 151 whp with, header back exhaust, pulley, cai, and cams. he doesnt have heads. if you get stage 2 heads, then that is good for at least anohter 20 hp. the pistons as well are good for quite a bit of hp. that should put you around 185-190 whp. then with all the above mods (plus i forgot to put inthe lite weight flywheel, so add that) you can use Hydra to get at lest 12-20 hp, depending on who is tunning the car. so that puts you easily around 200 whp. its totally possible. and 200 whp, would be between 250-260 chp. just look at these dyno's:

http://forums.nasioc.com/forums/show...ht=MRT+headers
thats not even with equal length headers
http://forums.nasioc.com/forums/showthread.php?t=617432

http://forums.nasioc.com/forums/showthread.php?t=595740
Matt's is minus lw flywheel, superstock pistons, heads, and engine management.

so once again, i say it is totally possible, but very expensive.
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Old 09-30-2004, 02:17 PM   #13
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Quote:
Originally Posted by americanyouth
No way in hell.

This has been covered at least a billion times. 200whp = ~ 275-280bhp.

Show me how your mods add up to that.... Cobb themselves only claim 190 bhp for their stage 3 kit, IIRC.
From Cobb's website:
"With the Stage 3 Power Package, you achieve the ultimate in naturally aspirated 2.5L performance by shattering the 200bhp mark."

so, yes -- you were basically correct.

but i, too have to disagree with the amount of whp gained from those modifications Crash477 posted.

i probably don't know half of what you guys know, but based on COBB's stage 3 power package, which is basically what was listed with the addition of a few things here and there, you're only gonna top 170/180 whp, with 200 bhp.

who knows.....im just a female. what the heck do i know?!
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Old 09-30-2004, 02:46 PM   #14
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Quote:
Originally Posted by Crash477
well if you look at Matt Monsons dyno he is getting 151 whp with, header back exhaust, pulley, cai, and cams. he doesnt have heads. if you get stage 2 heads, then that is good for at least anohter 20 hp. the pistons as well are good for quite a bit of hp. that should put you around 185-190 whp. then with all the above mods (plus i forgot to put inthe lite weight flywheel, so add that) you can use Hydra to get at lest 12-20 hp, depending on who is tunning the car. so that puts you easily around 200 whp. its totally possible. and 200 whp, would be between 250-260 chp. just look at these dyno's:

http://forums.nasioc.com/forums/show...ht=MRT+headers
thats not even with equal length headers
http://forums.nasioc.com/forums/showthread.php?t=617432

http://forums.nasioc.com/forums/showthread.php?t=595740
Matt's is minus lw flywheel, superstock pistons, heads, and engine management.

so once again, i say it is totally possible, but very expensive.

I see no numbers in Boost-free's thread, and Matt only got 150 whp. I don't see your point.

I never said it wasn't possible to get 200whp, I just said your mods won't do it. You can't add up numbers like that... the individual gains from each don't hold if you do all those mods.
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Old 09-30-2004, 02:48 PM   #15
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Quote:
Originally Posted by RxyGrl
From Cobb's website:
"With the Stage 3 Power Package, you achieve the ultimate in naturally aspirated 2.5L performance by shattering the 200bhp mark."

so, yes -- you were basically correct.

but i, too have to disagree with the amount of whp gained from those modifications Crash477 posted.

i probably don't know half of what you guys know, but based on COBB's stage 3 power package, which is basically what was listed with the addition of a few things here and there, you're only gonna top 170/180 whp, with 200 bhp.

who knows.....im just a female. what the heck do i know?!
The fact that you're female doesn't make a difference here... but 200 bhp != 170 whp.
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Old 09-30-2004, 05:51 PM   #16
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ok how do you get the nur spec rear section with the 3 inch pipe?
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Old 09-30-2004, 07:04 PM   #17
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yeah i dunno about 200whp but i think with those mods and the hydra... it should be like 180-190whp but throw in a shot of nitrous and that 200whp will be there!
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Old 09-30-2004, 07:15 PM   #18
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Hey this might sound stupid but what if i get some headers that are for an STi will they fit my car?
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Old 09-30-2004, 08:24 PM   #19
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Old 09-30-2004, 08:30 PM   #20
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but to be sure, i guess i will have to achieve this myself and dyno it to prove it. It will take me probably 2 years, but I will have a beast of an 2.5 RS.
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Old 09-30-2004, 08:37 PM   #21
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Quote:
Originally Posted by Caplin 2.5
Hey this might sound stupid but what if i get some headers that are for an STi will they fit my car?

Nope.


Jared
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Old 09-30-2004, 09:22 PM   #22
Caplin 2.5
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how much hp do you think i could get by taking my Rev Limiter off the car so my car can hit 8000 rpms?
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Old 09-30-2004, 10:39 PM   #23
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probably not much until you increase the compression, and get some more mods. but thats my .02
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Old 09-30-2004, 11:13 PM   #24
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I believe that among other things, one of the reasons the redline is where it is is because power drops off around that area. I saw a dyno run w/ intake, and full exhaust, plus a hydra, and the guy got 130whp, but a steep drop after 6500 or something. Another friend has the full setup (heads, pistons, unichip, etc), and got ~160 whp, but a solid curve to redline (which I was something like 7500 IIRC). There is a chance I'm getting the torque and HP curves mixed up though. About the exhaust, if all you want is loud, just do a straight pipe, or better, open headers . If you want power, too, don't do the 3" thing, as you'll lose all the low-end RS's are great for.
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Old 10-01-2004, 06:15 PM   #25
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my friend showed me a video of some q-tec thing that opens your headers in just 3 or 4 seconds and is adjustable fromt he cockpit, will i get a louder sound and more power with open headers?
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