3 inch exhaust

[nino]

is it possible? i could have sworn i read here that people have done it. ----i am in no way worried about loss of back pressure--- at least i dont think so.
so i get to looking at the pipes and wonder if it is just the inntermedieate pipe that people are putting to 3 inch. or are there people on here that have put 3 inch all the way around? including the "S" or should i be safe ad try to get 2 3/4 all the way to the cat?

suggestions please

[hawgs]

jeff has complete 3" including s pipe... i have a 3 inch i pipe in my closet waiting for me to order my s pipe. going to order two 3" 45 degree bends and make my own s pipe.

[stagen]

I have this complete setup sitting out back in my shed if anyone wants to come and get it. It has the 3' intermediate. http://www.jcwhitney.com/item.jhtml?...=18937&BQ=jcw2

[xjarayax]

I have a 3" from the Catback..and then the S Pipe as well....


I felt a loss of a backpressure and low end torque, I have to admit. But it helped my times, so top end was obviously improved.

Sam

[Arctc Wolf]

I've got a custom 3" exhaust w/ a flowmaster 80 series muffler (3" in, dual 2.5" out) w/ a set of quad resonated tips(cherry bombs). the whole thing cost me 400 installed. I kept the stock cat that has the 2.25" outlet. I lost a little backpressure, but gained a lot of power from 2000 up 2 5250-5500, then it tapers off a bit. if u get a bigger outlet cat, u'll lose a lot of low-end, but ur top end will be very strong. u can gain some low end back if u do intake mods 2 it, cuz u'll get more air in and it'll improve the whole powerband, low-end and top-end will both be improved. if u live near sea-level and plan on doing at least heads/cam or nitrous, a 3" will be well worth the money, and after that, u can decide how big an outlet u want on the cat(stock, 2.5", or 3").

[Nachius]

I have RKSport Headers, 3" S-Pipe, 3" in out cat, 3" I-pipe, and flowmasters 3" in dual 2.5" out 80 series.

I'm very very happy with it I may have lost some low end torque but I went from 3.08's to 3.42's near the same time!

Besides you never "lose" the torque it just moves positions in the powerband!

[predator5100]

Whats stock on our cars pipe sizing

[jonny985]

I have 3" piping and a 3" cat and i wouldn't give it up for anything. My car sounds sweet and is so fun to drive. I didn't even notice a loss in low-end torque, it just feels more powerful everywhere, I also have 3.42s.

[jonny985]

I wouldn't do the 2 45s from JC whitney, you could spend half as much money and go with a U-pipe and cut it in half, flip it and weld.

Here is a link to the part numbers:
http://www.camarov6.com/cgi-bin/ulti...25&t=001750&p=

Feel free to contact me if you need any help

[John_D.]

<blockquote>quote:</font><hr>Originally posted by nino:
...so i get to looking at the pipes and wonder if it is just the inntermedieate pipe that people are putting to 3 inch. or are there people on here that have put 3 inch all the way around? including the "S"...?<hr></blockquote>

I put 3" all the way back. It's probably overkill for an n/a car.

I've heard it said that the most restrictive piece in the system is the s-pipe. I replaced mine with the two 45's (3").

Everything is stainless from the cat all the way back, and ceramic coated from the cat forward (including the y-pipe), so it should last nearly forever.

[nino]

i have decided to go with 2 3/4 all the way back and keep my dynomax muffler. i understand and thank all of you 3 inch guys for your replys, but i think a 2 3/4 would be what i am looking for performance wise. how does this sound? i can get the 2 3/4 pipe from the muffler to the cat for $125. i thought that was good for one pre bent solid piece.
i will keep you all posted.

[John_D.]

<blockquote>quote:</font><hr>Originally posted by nino:
...i think a 2 3/4 would be what i am looking for performance wise. how does this sound?<hr></blockquote>

You'll like it. :D

Especially being that it's all the way from converter to muffler.

[Fusion]

I have 2.75 and then where the S bend is I have 3 inch. I like it alot gives a nice deep good sound. Def reccomend it. Helps out on top end aswell!

[Ruger]

What about with the WS6 muffler on our cars? Since it has 3" inlets and ours are much smaller,.. would i lose any low end with juist this.

[nino]

ruger, i dont think you would lose anything if it was just the muffler, but then i dont know how it would sound either.

while i was at the shop he showed me the flowmaster hp/pipe size chart. for example 200 hp: 2 1/4 in pipe, 250 hp: 2 1/2 inch pipe, 300 hp: 3 inch pipe. and i have to admit the best sounding V6 camaro i have ever heard was a 96 with flows 80 series. and thats it. nothing else but appearance mods. when stepped on it sounded mean without all the crackle.