ok.. I have a DC Sports 4-2-1 1 Piece Header with a 2 inch collector. I have a 2.5 inch Carsound Cat, 2.5 inch 18 inch long Magnaflow resonator, and a 2.5 inch ES Technical Roadsport Muffler (straight through like the magnaflow mufflers). I plan on using 2.5 inch crush bent piping.

now the car its going on --> 1992 Acura Integra GS-R (1.7L B17 VTEC).

So now the questions:

1. How do you think this will sound? too loud? raspy, deep? just rite?

2. If I used 2.25 inch crush bent piping and just expanded the ends to fit on the cat, resonator and muffler, would that be ok? sound different?

3. Or just stick to the 2.5 inch piping

4. What if I used a 2.25 inch tail pipe? Would that quite things down and still work good?

What do you all suggest?

 

1. Too loud (but hey, it's subjective...I find my SP loud...)
2. I think the 2.25 would make it sound a bit quieter, but I think the difference is negligible (again, this is subjective)
3. What mods do you have? If you have turbo or high performance N/A, stick with 2.5 if you want to maintain your performance...otherwise, switch out.
4. Read #2

 

I just got my exhuast done on my gsr. I got a hi flow catconverter no resisonator and a magna flow 4 inch muffler, the car also has great pick up and hte nouise is just great. I got it done in a 2.5 inch stainless steel so if that helps.

 

so its not too loud and raspy around town under VTEC? got any sound clips of it?

 

sadly to say mine is like 5 inches.

It isn't as loud as I though.

2.5 will sound and look pretty good I imagine

 

5 inch full exhaust? or 5 inch tip?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92integraVTECgsr &raquo;</TD></TR><TR><TD CLASS="quote">5 inch full exhaust? or 5 inch tip? </TD></TR></TABLE>

hahah..lets hope its a 5 inch tip

 

I hope so.. b/c a 5 inch full exhaust??? i hope you're running a turbo from a diesel transport.

 

you shouldn't step down in piping size. Meaning the cat shouldn't step down from the header and the exhaust shouldn't step down in size from the cat. If you have a 2.5 in cat then you should get a 2.5 in cat-back

 

is there anyway to make a 2.5 inch exhaust system sound quiet like stock?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LsHoney84 &raquo;</TD></TR><TR><TD CLASS="quote">is there anyway to make a 2.5 inch exhaust system sound quiet like stock?</TD></TR></TABLE>

Yes get a cat (save environment), multiple resonators, quiet muffler, shift earlier (not 7k)

 

for a mild n/a set up and bolt on's u really don't even need 2.5 inch exhuast, the 2.36 inch exhuast that most manufactuers use for aftermarket exhuast is plenty

 

ya well i cant afford the price tag of the RS*R.. it does sound awesome though..

but ill give the 2.5 inch a try and see what happens.

 

you are goign to get a different sound with crush bent piping anyway

 

what do mean by different sound? im using the crush bent because it should narrow the pipe up a little.. but its not going to restrict flow at all since the 2.5 inch is already a large pipe diameter for my application.

 

i regret gettin my crush bent exhaust...such a waste imo...id just save a little more and get a cat back system...but its all up to you man...im just sayin i had regrets..also..the crush bent piping sounded like ***...i had a 14 inch resinator..cat..and magnaflow oval and it sounded ricey as hell..now i have an apex n1 catback and i love it..performancewise and how it sounds..

 

was it 2.5 inch?

well i dont know.. everything is off the car now, so im going ahead with things.

 

sounds like 2.5 is a little big for you. i would look into 2.25 or 60mm.

if it's too loud, just get another resonator.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 92integraVTECgsr &raquo;</TD></TR><TR><TD CLASS="quote">I have a DC Sports 4-2-1 1 Piece Header with a 2 inch collector.</TD></TR></TABLE>

Don't bother with a 2.5" exhaust if your collector is 2".

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Reid &raquo;</TD></TR><TR><TD CLASS="quote">Don't bother with a 2.5" exhaust if your collector is 2".</TD></TR></TABLE>


why do you say this? just because of the difference in size?

last chance everyone...

use the 2.5 inch? or go 2.25?? (that would mean I would have to sell everything asap because the car is sitting with all the parts off)

 

2.5 is the highest for N/A, and is obviously the least restrictive. It is going to free up much more power than a 2.25 exhaust. If you want a quiet sound just make shure you have a resonator and a nice muffler, it should sound just fine.

 

if you plan on upgrading in the future get the 2.5 pipes because it allows your engine to breath easier, don't use the pipes to muffle your sound, thats what the muffler is for!
exhaust restriction

2.5 is good for N/A anything bigger is for turbo

 

any inputs on the skunk2 catback exhausts? i'm planning on gettin that soon.

 

ok first things first. the bigger the piping the less backpressure. unless you are running a turbo I suggest a 2.25" straight through with no resonator. 2.5 will be loud but lose backpressure. 2.25 will be prime.

 

I'd suggest with going at the most 2 3/8 for n/a. Any bigger is too much and too loud.