Exhaust sizing, what to go and where to go?

[Taso]

hey looking to get an exhaust, probably just a cat back, what size would be recommended to go as i only have a Short ram intake, and am planning on gettin a VAFC, i want the vtec to sound awsome in the high rev range but dont want that farting sound that alot of NA's get, any help?
car is a vtir prelude,

Im located in Melb, anyone have any suggestions on where to go to get the exhaust done, at a good price

thanks

[shecomb]

2.25in is the go for N/A

[Filo_xtc01]

Yea, if your not gonna go any further with it then 2.25" will be fine.

[Taso]

but will i notice any difference and how will it sound? 2.25 just seems so small, what is the stock size of the exhaust? for a gen 4 jdm vtir
thanks

[CUL8R]

stock i believe is 2"
2.25 IS PLENTY for ur planned mods, id u wish to go 2.5" ull lose a bit down low, i know from experiance.
this is no skyline with a t51 that needs a big 4" exhaust, this is a 2.2l prelude with nothing but and intake and exhaust, 2.25 is enough, 2.5 is MAX

[MRH-22A]

i think stock is 2.25... isnt it?

[Taso]

ye wasnt planning on goin any bigger then 2.5, 2.25 is sounding like a good option, dont no weather to go a muffler with a tip or a cannon with a crazy angle, any suggestions?

[m3ntAL_l2]

im about to put in a head + 2.5" cat back and a 3" muffler. hope that all go good lol.

[Filo_xtc01]

Dont put a cannon on a lude, not with that angle thing that all the nissans have. As said above this is a 2.2 prelude not a drift car.

I have a 2.5" from the flex pipe back. Only reasion being is that I plan to go further with my mods and dont want to restrict myself later on.

[94vtirozguy]

stock is 1.7" ID on a 4th gen VTIR

[buzz_civic]

I have a Vtir with extractors and from the extractors to the first muffler is 2.25" then from there back is 2" and it read 88db... but that was at 5500 RPM

[Nightrider]

2.5 all the way.

[MRH-22A]

^^i agree

[krogoth]

2.5 all the way.

2.5 is too much, too noisy, loss of backpressure

and possible loss of down low power, car will feel more sluggish

[Filo_xtc01]

2.5 is too much, too noisy, loss of backpressure

and possible loss of down low power, car will feel more sluggish
What are you on about? I have 2.5 from the flex back, and as long as you have a good muffler and resonator the noise will be fine.

Loss of back pressure? You dont want back pressure, you want exhaust velocity...

I noticed NO loss in power down low at all. It didn't feel sluggish whatsoever. When i get my dyno graph i'll post it up.

Have you driven a lude with a 2.5" exhaust?

[krogoth]

No i havent, but i assume that 2.5 is fine for turbo cars

although heez only getting 2.5 from the cat back, so i guess thats fine

and every1 has a different definition for noisy, i think my stock piping and a fart cannon is noisy, lol

2.5 all the way is definetley overkill

[94vtirozguy]

2.5" is not even close to overkill for performance. The size you choose depends on the mods you will do for the car.

2.5" is noisier comparing the same muffler / header and resonators.

[ekjmp]

i got 2.25" on my lude which produces a great note and power. perosnally id go 4 that but definantly no bigger than 2.5" :S