playboyace35

i am currently running open downpipe and the neighbors are complainning that in waking them up when i come home lol, now my parents are forcing me to connect back my exhuast system.

my magna flow exhaust system is 2.25 inch. So how much of a power lost do u think i will get when i connect back the magnaflow exhaust system and the stock cat?

(running open downpipe 230hp 210tq)


i researched and the margin is about 10-30hp. What do u guys think?

beepy

You will lose a bit. The stock cat is the real bottleneck, and you might as well spend $60 and get a Magnaflow cat.

SOHC_MShue

Tell your neighbors to stop bitching

Muckman

iTrader: (2)

Just get an E-cutout. Best of both worlds at the flip of a switch.

playboyace35

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Muckman &raquo;</TD></TR><TR><TD CLASS="quote">Just get an E-cutout. Best of both worlds at the flip of a switch.</TD></TR></TABLE>

that would be around $250 installed right? thats a bit out of my budget...(i just had my car impounded which costed me 500) so i dont really have that much money right now.

playboyace35

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by beepy &raquo;</TD></TR><TR><TD CLASS="quote">You will lose a bit. The stock cat is the real bottleneck, and you might as well spend $60 and get a Magnaflow cat.</TD></TR></TABLE>

what if i get a straight pipe and throw da cat away? would it be loud still?

SOHC_MShue

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by playboyace35 &raquo;</TD></TR><TR><TD CLASS="quote">what if i get a straight pipe and throw da cat away? would it be loud still?</TD></TR></TABLE>
not as loud as no exhaust. This is what i run with a 2.25" exhaust and honestly it isn't bad at all.

playboyace35

how much power are u losing to the 2.25 exhaust?

Si Shane

a muffler and a resonater should be pleanty to quiet it down. its a world away from open DP.

Jwbetley

keep adding turbo's to your downpipe until it is quiet. I am running open downpipe right now aswell. Waiting on the kteller 3". Good luck

playboyace35

so far no one realli answer my question lol? how much ya think i will lose?

turbo_ef9

im running a 2.25 with a gutted cat and when i run open dp its night a day difference.. we cant really tell you how much power you'll lose, but i can tell you that when i do run open dp to running my exhaust i think i lose at least 10-20 whp.. like i said, its night and day.. you're going to hate the 2.25 exhaust and my exhaust with the gutted cat isnt that loud so you'll be find with a test pipe..

Boostfed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by playboyace35 &raquo;</TD></TR><TR><TD CLASS="quote">i am currently running open downpipe and the neighbors are complainning that in waking them up when i come home lol, now my parents are forcing me to connect back my exhuast system.

my magna flow exhaust system is 2.25 inch. So how much of a power lost do u think i will get when i connect back the magnaflow exhaust system and the stock cat?

(running open downpipe 230hp 210tq)


i researched and the margin is about 10-30hp. What do u guys think?</TD></TR></TABLE>


Just some reference, I had a customer who had a 99 Si with a Drag 3 kit made 195whp, this was through stock cat and Greddy Exhaust, I told him I had a test pipe we could throw on there. Redynoed we made 236whp, he did gain 2 psi from that so I attribute 20-25whp(MAX) from the Boost Increase but the other 15 or so from just a non restrictive cat I give the gain from boost only 20-25 hp since it is just a small Turbonetics T3/T04B Super V Trim turbo soooooooooooo

TurboCoop

When I switched from my stock exhaust to a 3" it made a HUGE difference, and my boost maxed at 10 instead of 7 (I had a 7psi spring), but I bet the 2.25 would be fine, especially without the cat. My guess in power difference between the open DP and the exhaust would be like 15-20hp, but the big factor is how much slower the turbo will spool up, as soon as you get the exhaust on you will want to take it right back off, I guarantee

Jwbetley

odp always make for much better traps

wantboost

iTrader: (2)

i say **** the neighbors. i drove around open header (na) for a while and did a few burnouts down my street at like 4am. if they bitch let them keep on bitching

093turbo16

iTrader: (2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i say **** the neighbors. i drove around open header (na) for a while and did a few burnouts down my street at like 4am. if they bitch let them keep on bitching</TD></TR></TABLE>

hell yes

Boostfed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">i say **** the neighbors. i drove around open header (na) for a while and did a few burnouts down my street at like 4am. if they bitch let them keep on bitching</TD></TR></TABLE>

HEHE! I used to feel the same way you did when I was 18 Years old, I had 2 12" Subwoofers and BIG AMP and would boom like crazy at like 3-5 AM after getting bootie calls back then! I had no care for anyone and wondered why people even bitched about it being loud back then. Now being old(32 years old) I bought my first house in 1999 at age 26 and then and now I know why they bitched. Once you own yoru own home and you get older hearing someone boomin or someone screeching tires in teh neighborhood is annoying and uncalled for. I have a 10 year old too sooooooooooooooooo. Hey remember that old saying "If it's too loud you're too old!"? I guess it is true hehe! My rant is over, I know some of you younger cats will learn when you get older , DAMN Y0 all I want is some peace and quiet heheehehheehheheehe

gen2integra2001

well i have a 2.5" DP to my stock cat and 2.25 piping and only put down 176whp at 10psi but i have my 3" right here n waiting to go on hopefully tomarrow when i get paid so ill let you kno about that and i have a stock ls with a sc44.

SHystrdyGSRtdy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostfed.com &raquo;</TD></TR><TR><TD CLASS="quote">HEHE! I used to feel the same way you did when I was 18 Years old, I had 2 12" Subwoofers and BIG AMP and would boom like crazy at like 3-5 AM after getting bootie calls back then! I had no care for anyone and wondered why people even bitched about it being loud back then. Now being old(32 years old) I bought my first house in 1999 at age 26 and then and now I know why they bitched. Once you own yoru own home and you get older hearing someone boomin or someone screeching tires in teh neighborhood is annoying and uncalled for. I have a 10 year old too sooooooooooooooooo. Hey remember that old saying "If it's too loud you're too old!"? I guess it is true hehe! My rant is over, I know some of you younger cats will learn when you get older , DAMN Y0 all I want is some peace and quiet heheehehheehheheehe </TD></TR></TABLE>

man.. i'm not even 21 yet, and i feel the same way you do... ******* annoying when people are blasting their ****... i get annoyed if i hear neighbors at 10pm and on... i think, wtf shouldn't they be sleeping?