How restrictive is the stock cat?
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From: florida
How restrictive is the stock cat?
I have heard that the s2000 stock cat is a high flow cat. Is this true? Now how restrictive does the cat get when you have a vortec SC S2000 with a stock cat and the Amuse Single Outlet R1 Titanium exhaust?
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From: Norco, ca, USA
Re: How restrictive is the stock cat? (realis9)
if your running a vortech S/c there is a noticable amount of power to be had by ditching the stock cat and running a test-pipe. 
N/a a test pipe wont yield that good of gains.
N/a a test pipe wont yield that good of gains.
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From: SoCal
Re: How restrictive is the stock cat? (realis9)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 »</TD></TR><TR><TD CLASS="quote">I have heard that the s2000 stock cat is a high flow cat. Is this true? Now how restrictive does the cat get when you have a vortec SC S2000 with a stock cat and the Amuse Single Outlet R1 Titanium exhaust?</TD></TR></TABLE>
the term is misused to death today, people label high flow cat to test pipe, resonated testpipe, high flow aftermarket(example: random cat) or even factory option(ask any mopar v8 guys)
the stock unit is pretty good for a stock cat, you will not get a magical gain that you could a decade ago, most car makers are leaving less on the table.
if you are relatively stock, don't even worth the headache imho
the term is misused to death today, people label high flow cat to test pipe, resonated testpipe, high flow aftermarket(example: random cat) or even factory option(ask any mopar v8 guys)
the stock unit is pretty good for a stock cat, you will not get a magical gain that you could a decade ago, most car makers are leaving less on the table.
if you are relatively stock, don't even worth the headache imho
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From: florida
Re: How restrictive is the stock cat? (iam7head)
car is not stock vortec SC and Amuse Single Outlet R1 Titanium exhaust. Just trying to find out if the stock cat would be holding the car back.
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From: Orange County, CA, USA
Re: How restrictive is the stock cat? (realis9)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 »</TD></TR><TR><TD CLASS="quote">don't mind ditching the oem cat, but my bro doesn't want to get a cell light. </TD></TR></TABLE>
Amuse R1 non-resonated + Berktech testpipe = no CEL.
Amuse R1 non-resonated + Berktech testpipe = no CEL.
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From: Somewhere in, IL, United States
Re: How restrictive is the stock cat? (FR-MOB: Projekt)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FR-MOB: Projekt »</TD></TR><TR><TD CLASS="quote">
Amuse R1 non-resonated + Berktech testpipe = no CEL.</TD></TR></TABLE>
- weight reduction x 12 HP = tEh sex
Amuse R1 non-resonated + Berktech testpipe = no CEL.</TD></TR></TABLE>
- weight reduction x 12 HP = tEh sex
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From: florida
Re: How restrictive is the stock cat? (FR-MOB: Projekt)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FR-MOB: Projekt »</TD></TR><TR><TD CLASS="quote">
Amuse R1 non-resonated + Berktech testpipe = no CEL.</TD></TR></TABLE>
Bertech testpipe how does it work? How many people use it? The exhaust should be going on tomorrow. Stay tunes for pics.
Amuse R1 non-resonated + Berktech testpipe = no CEL.</TD></TR></TABLE>
Bertech testpipe how does it work? How many people use it? The exhaust should be going on tomorrow. Stay tunes for pics.
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From: Stuck in Snow, UMW, Yo Mama
Re: How restrictive is the stock cat? (iam7head)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">the term is misused to death today, people label high flow cat to test pipe, resonated testpipe, high flow aftermarket(example: random cat) or even factory option(ask any mopar v8 guys)
the stock unit is pretty good for a stock cat, you will not get a magical gain that you could a decade ago, most car makers are leaving less on the table.
if you are relatively stock, don't even worth the headache imho</TD></TR></TABLE>
How wrong you are....there are numerous owners in the Chicago area that have only added straight pipe (ok, maybe a K&N filter as well) on their F20c's. The straight-pipe swap from OEM cat is DEFINITELY worth whatever little headache it is to install for noticeable gains.
the stock unit is pretty good for a stock cat, you will not get a magical gain that you could a decade ago, most car makers are leaving less on the table.
if you are relatively stock, don't even worth the headache imho</TD></TR></TABLE>
How wrong you are....there are numerous owners in the Chicago area that have only added straight pipe (ok, maybe a K&N filter as well) on their F20c's. The straight-pipe swap from OEM cat is DEFINITELY worth whatever little headache it is to install for noticeable gains.
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From: florida
Re: How restrictive is the stock cat? (jesseb01x)
Finally got the amuse R1 on. After the first 5 mins the car threw a cell light. Why did that happen? We reset the ecu and the cell went off. Is the cell going to come back again later on with this cat-back exhaust? The exhaust is pretty loud, but it sounds good too. I really hope the stock cat is not holding back a lot of power. I should get some pics this weekend and update on performance on the butt dyno 
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From: Stuck in Snow, UMW, Yo Mama
Re: How restrictive is the stock cat? (jesseb01x)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">i think that inline pro s2k that ran a 10.7 quarter mile had stock exhaust, so i wouldnt say itz too restrictive</TD></TR></TABLE>
You mean this turbo'd S2000:
Hmmm....turbo'd S2000 on stock exhaust with full OEM cat, I dunno?
You mean this turbo'd S2000:
Hmmm....turbo'd S2000 on stock exhaust with full OEM cat, I dunno?
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From: midwest
Re: How restrictive is the stock cat? (Luder94)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luder94 »</TD></TR><TR><TD CLASS="quote">
How wrong you are....there are numerous owners in the Chicago area that have only added straight pipe (ok, maybe a K&N filter as well) on their F20c's. The straight-pipe swap from OEM cat is DEFINITELY worth whatever little headache it is to install for noticeable gains.</TD></TR></TABLE>
werd, i heard anywhere from 5+ hp. its a cheap mod and will only take 5 mnutes to swap out.
How wrong you are....there are numerous owners in the Chicago area that have only added straight pipe (ok, maybe a K&N filter as well) on their F20c's. The straight-pipe swap from OEM cat is DEFINITELY worth whatever little headache it is to install for noticeable gains.</TD></TR></TABLE>
werd, i heard anywhere from 5+ hp. its a cheap mod and will only take 5 mnutes to swap out.
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From: florida
Re: How restrictive is the stock cat? (frankdatank)
Test pipe seems like it will give more whp, but what about throwing a cell? How many poeple on here ride around with their cell light on?
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From: Miami, FL
Re: How restrictive is the stock cat? (FR-MOB: Francesco)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FR-MOB: Francesco »</TD></TR><TR><TD CLASS="quote">the whole s2k exhaust system is very well designed from the factory </TD></TR></TABLE>
i disagree greatly. it is so rediculously restrictive. headerback exhaust made all the difference on my car. yeah its quiet but its tiny, twinloop mufflers, opaque cat, freed up SO much power when i got rid of it. romp on g35 6spd's with intakes all day. couldnt help but get beat without it.
it really really opends up top end now and vtec feels like a nitrous shot
</TD></TR></TABLE>i disagree greatly. it is so rediculously restrictive. headerback exhaust made all the difference on my car. yeah its quiet but its tiny, twinloop mufflers, opaque cat, freed up SO much power when i got rid of it. romp on g35 6spd's with intakes all day. couldnt help but get beat without it.
it really really opends up top end now and vtec feels like a nitrous shot
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Re: How restrictive is the stock cat? (Luder94)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luder94 »</TD></TR><TR><TD CLASS="quote">Mechanical fix with my T1R straight pipe. No CEL. Also, it clears IL emissions with no issue.</TD></TR></TABLE>
Tell me more about this fix?
Tell me more about this fix?
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From: Stuck in Snow, UMW, Yo Mama
Re: How restrictive is the stock cat? (tegsallgood)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">i disagree greatly. it is so rediculously restrictive. headerback exhaust made all the difference on my car. yeah its quiet but its tiny, twinloop mufflers, opaque cat, freed up SO much power when i got rid of it. romp on g35 6spd's with intakes all day. couldnt help but get beat without it.
it really really opends up top end now and vtec feels like a nitrous shot
</TD></TR></TABLE>
Well, you'd be wrong. The factory exhaust is pretty well tuned from the factory, with the help of M-tec. The exhausts that net better gains from factory are typically non-emissions compliant, non-noise restriction compliant, and typically lack any kind of certification (JASMA, CARB, etc.).
The Honda factory had other standards and parameters they had to manufacture within.
What your setup probably freed up was top end power. However, I'm willing to bet that you lost a little down low though.
it really really opends up top end now and vtec feels like a nitrous shot
</TD></TR></TABLE>
Well, you'd be wrong. The factory exhaust is pretty well tuned from the factory, with the help of M-tec. The exhausts that net better gains from factory are typically non-emissions compliant, non-noise restriction compliant, and typically lack any kind of certification (JASMA, CARB, etc.).
The Honda factory had other standards and parameters they had to manufacture within.
What your setup probably freed up was top end power. However, I'm willing to bet that you lost a little down low though.
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the S2000 factory CAT actually out flows many of the other high flow cats in the market today. So when you guys are getting those high flow CAT's thinking you're getting more performance and staying legal, you're actually losing performance.
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From: Stuck in Snow, UMW, Yo Mama
Re: (kane.s2k)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">the S2000 factory CAT actually out flows many of the other high flow cats in the market today. So when you guys are getting those high flow CAT's thinking you're getting more performance and staying legal, you're actually losing performance. </TD></TR></TABLE>
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Ding, ding, ding, ding, ding........"We have a winner".
However, straight-pipe ftw!!!
Realis,
If you want to free up top end power, I suggest going one-make with your exhaust setup. Either stick with Amuse header and cat-back, or J's Racing, or Top Secret.
If you want to free up more low to mid range torque, stick with Mugen.
If you want something in between the two, go with a full Spoon setup.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Ding, ding, ding, ding, ding........"We have a winner".
However, straight-pipe ftw!!!
Realis,
If you want to free up top end power, I suggest going one-make with your exhaust setup. Either stick with Amuse header and cat-back, or J's Racing, or Top Secret.
If you want to free up more low to mid range torque, stick with Mugen.
If you want something in between the two, go with a full Spoon setup.
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From: Sykesville, md, us
Re: How restrictive is the stock cat? (realis9)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by realis9 »</TD></TR><TR><TD CLASS="quote">Bertech testpipe how does it work? How many people use it?</TD></TR></TABLE>
You can get the Berk Technology's test pipe off their web site for about $100. It comes with all the hardware you need and is really easy to put on. All you need is a wrench, socket and 30 min. I don't know if I gained any horsepower with the install, but it did feel like it quickened the throttle response. But that could just be my imagination. Other then that, I only have an intake and exhaust on my f20c.
You can get the Berk Technology's test pipe off their web site for about $100. It comes with all the hardware you need and is really easy to put on. All you need is a wrench, socket and 30 min. I don't know if I gained any horsepower with the install, but it did feel like it quickened the throttle response. But that could just be my imagination. Other then that, I only have an intake and exhaust on my f20c.