Questions about cat-back custom exhaust
Re: Questions about cat-back custom exhaust (03EM2_EX)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 03EM2_EX »</TD></TR><TR><TD CLASS="quote">what size piping on em2 n/a should get?
Do they make a port for the o2 sensor to hook up?
do you need a resonator?
Also is t smog legal?</TD></TR></TABLE>
1. 2.5" piping.
2. Oxygen Sensor bungs can be welded onto existing piping.
3. No, you don't need a resonator, but you do need a Catalytic Converter to stay legal.
4. Turbo's? Don't know what you're asking.
Do they make a port for the o2 sensor to hook up?
do you need a resonator?
Also is t smog legal?</TD></TR></TABLE>
1. 2.5" piping.
2. Oxygen Sensor bungs can be welded onto existing piping.
3. No, you don't need a resonator, but you do need a Catalytic Converter to stay legal.
4. Turbo's? Don't know what you're asking.
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From: Abbotsford, B.C., Canada
Re: Questions about cat-back custom exhaust (toyomatt84)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by toyomatt84 »</TD></TR><TR><TD CLASS="quote">
1. 2.5" piping.
2. Oxygen Sensor bungs can be welded onto existing piping.
3. No, you don't need a resonator, but you do need a Catalytic Converter to stay legal.
4. Turbo's? Don't know what you're asking.</TD></TR></TABLE>
Holy crap Matt, 2.5" are u kiddin? i would use than on maybe a k20a2, but NO WAY on a d17.
Im running 2.25", and I noticed a drop in low end. If i was to do it all over again, 2" FTW with a d17a1, a d17a2 MIGHT be able to get away with 2.25", but 2.5" is WAY to big.
Heres my answers to your questions.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">
what size piping on em2 n/a should get?
Do they make a port for the o2 sensor to hook up?
do you need a resonator?
Also is t smog legal? </TD></TR></TABLE>
1) 2.25"
2) THe 02 sensors usually go into the catalytic converter, and yes they can put a cat on ur custom exhaust
3) no u do not need a resinator
4) THe only legalities with exhaust are, #1 YOU MUST have a catalytic converter #2 You MUST pass smog regulations ( emissions testing) and in most places #3 you much be under a certain level of dB. <-- Loudness
1. 2.5" piping.
2. Oxygen Sensor bungs can be welded onto existing piping.
3. No, you don't need a resonator, but you do need a Catalytic Converter to stay legal.
4. Turbo's? Don't know what you're asking.</TD></TR></TABLE>
Holy crap Matt, 2.5" are u kiddin? i would use than on maybe a k20a2, but NO WAY on a d17.
Im running 2.25", and I noticed a drop in low end. If i was to do it all over again, 2" FTW with a d17a1, a d17a2 MIGHT be able to get away with 2.25", but 2.5" is WAY to big.
Heres my answers to your questions.
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">
what size piping on em2 n/a should get?
Do they make a port for the o2 sensor to hook up?
do you need a resonator?
Also is t smog legal? </TD></TR></TABLE>
1) 2.25"
2) THe 02 sensors usually go into the catalytic converter, and yes they can put a cat on ur custom exhaust
3) no u do not need a resinator
4) THe only legalities with exhaust are, #1 YOU MUST have a catalytic converter #2 You MUST pass smog regulations ( emissions testing) and in most places #3 you much be under a certain level of dB. <-- Loudness
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Member
Joined: Jun 2003
Posts: 1,751
Likes: 1
From: Washington, DC, USA
Stock is 1 5/8 or 1.75 IIRC. 2" is fine for NA. And your best bet is from the header back witha new cat as well. There downpipe is double walled and there's a donut in the back of the cat cutting the diameter down. So opening up the back end does very little without also opening up the front.
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Building custom exhaust, 3inch and need to know where to get 3inch resonater and 3inch resonated tes
BolivianFuego
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Oct 26, 2003 09:36 PM
