akertulis

who had a custom exhaust made for their TL? What did you have done and what did you pay to have it done?

swoosh

iTrader: (5)

search if your friend buddy....

sooooooooo many people....so many types...

have seen stage1 /2 /3 exhaust and people have gotten this done in less than $200....

then there is a fully tubing replacement....adding magnaflow mufflers....adding resonators....phew....there is a whole lot....

akertulis

yea none of that stage exhaust im talkin new piping all the way back, what has worked good for people

swoosh

iTrader: (5)

I have gone the custom true dual route....it should be on in the next couple weeks....

a lot of people have gone with 3" tubing which splits to 2.5" or 2.5" tubing splits to 2.25"....so many options and variations....

are you planning on staying NA or FI ?

akertulis

n/a for me, wondering what did it cost you for your set-up i feel like i can have an exhaust made for me cheaper than spending 1400 on richie's true dual

swoosh

iTrader: (5)

depends on the shop you go to....

the shops gave me a quote for around that much 1300 for the exhaust (includes the resonator and mufflers)...304 mandrel bent piping....but then again its a true dual...so twice the piping...twice the work....so 1300 + 300 for the PCD's so the total is around 1600...where as if you take the full setup from richie its around 2200....and if you go any other route its around the same....

in KS the shops are kinda limited so they are friggin expensive....if you live in a place where there are many shops you can get the true dual done for 800-1000 and a regular for 600-800....

akertulis

good to know ill have to check more into that more, i already have pcd's and j-pipe so ill just need the cat back exhaust....question though on your though how much better would true dual be compared to a straight single pipe?

stvtec

iTrader: (2)

IMO not much difference at all. Once you open up the exhaust past the point of restriction, there are no more gains to be had by opening it up more, doing a dual design, etc etc. Granted, there are design implications for scavenging and whatnot, which just goes to show it IS possible to go "too big".

IMO just get what you want, what fits your budget, and enjoy. Don't overthink the hell out of it.

swoosh

iTrader: (5)

the main points where the regular exhaust loses power are:
1> Y pipe merger
2> Y pipe split

You can avoid those by using a soft Y merge and Split....thats why couple people have gotten a single exit exhaust....so that you can have 1 down pipe (3") and no Y split...so you dont loose much at the same time you save weight....

I highly disagree....according to you a restrictive muffler and a free flowing straight through muffler wont have any affects on the performance since its past a point of restriction....

A true dual has very long primaries (just like everyone wants for their jpipe) then a "h" to equilize the pressure (majorly for the sound) and then no y split or merge....so no loss there.....

if you choose the right size you will see better gains that going the merge and split route....

stvtec

iTrader: (2)

Huh? I'm saying once you open it up enough, to the point that it is not restrictive anymore, there is not much difference. Can you run some flow analysis and prove that you will move .5 CFM more exhaust with a certain design than another? Probably. Does it make a damn difference in the real world? Probably not. That's what I'm saying.

swoosh

iTrader: (5)

true...but how you saying that is helping the OP out ??

you said true dual wont have any gains/performance increase over the catback...which is what am debating about....

your point of opening up a completely non restrictive exhaust with no performance change is correct....but to get to that point is insane....there is reason why OPEL wont tell his exhaust design to anyone....

akertulis

got what i need to know thats swoosh....now the next question is what mufflers would you recommend to use?

stvtec

iTrader: (2)

I give.

swoosh

iTrader: (5)

its a whole world out there buddy....

depends on what size inlet and outlet you want....which depends on what size pipes your running....which depends on how many pipes your running....so a true dual you would go with 2.25" or 2.5" each....a single with splits you can go with 3" to 2.5" and all those combinations....

as for brand....i would stick with Magnaflow mufflers and resonators....Vibrant makes some nice resonators as well....but those are my 2 cents....

Already ???

I guess we got off the wrong foot with the misinterpretation....will dyno my car for the gains and we shall be certain

Sonnick

OP: I am always willing to help out....so not to sound like an ass, but if you would've searched, you would have come up with about 15 threads on this topic alone. You need to do some research on the topic, narrow it down, THEN ask questions. I've asked questions too, but only after I did a LOT of research. Now people ask me about what to do for their custom setups. See what I'm getting at? You will feel better about your exhaust as well when you piece the parts together yourself rather than having someone tell you what to buy. I'm going on my 4th exhaust setup now, so I like to think I know what I'm talking about. But as anything, I still have a lot to learn as well.

There are so many different mufflers to choose from. Most go the Magnaflow route if they are going custom. They flow very well, sound good, and apparently last. There is also Dynomax, Flowmaster, Borla, Vibrant, and others as well. If you want power go with the straight thru design. If you are worried more about sound, then it doesn't really matter whether it's baffled or straight thru. FYI: I've been through 2 Dynomax mufflers, both which have been defective.

Good luck with your decision. Exhaust work isn't cheap. If I could do it again, I would've went with SS piping rather than aluminum. Do it right the first time.

akertulis

already exactly i just asked which mufflers swoosh would recommend thats it

swoosh

iTrader: (5)

Do listen to this man....he knows what he talks about....btw I did go with t304 piping and bends....

OP this is what I would suggest you to do since you already have precats and jpipe in place....

Get a magnaflow resonator (2.5" around 14" long)....have a single down pipe (2.5")....use a soft y split for 2.25" pipes....get the magnaflow 2.25" in-out center offset 4"x9" mufflers (this will be a little loud....if you want deeper, go with 5"x8") and get some tips of your choice and all it a day....this setup will sound good and get you decent gains....

Down the line you dont like it or wanna do something else....reuse the mufflers/resonators and do a different setup....

catching my drift ?

akertulis

gotcha now when you say want to go deeper you mean more of a growl and i already have the 14" magnaflow so thats easy i just need to get the mufflers and tips and have the job done.....thanks for the help

Sonnick

The 14in might be a little small for a reso with the PCDs. What are the dimensions? Is it round or oval?

I'd go with the 5x8 mufflers since you are going with a 14in reso. Just a warning, it is going to be loud and have some rasp unless you go with a bigger reso. OR...you get 5x8x18 in mufflers instead of the 5x8x14. I'm not sure how well they would fit although I believe an Accord has the 18in mufflers at the rear. Even if you do the 18in mufflers, it may still be a tad loud.

Swoosh: What did you end up going with? I'm glad to hear you went with 304SS.

swoosh

iTrader: (5)

I went with 5x8x14 and 22" resonator...gotta get the shop to get it done in the next 2 weeks....just waiting to get my emissions done and after that am free for 2 years

akertulis

yea i was just thinking maybe a 22'' resonator would prolly be better i did the 14'' on mine and it sounded like shit had to add my stock one on behind it

akertulis

let me know how it sounds when you do that setup

swoosh

iTrader: (5)

sure will post tons of videos....

RainSupreme

I didn't go the custom route, I did however go with the RV6 V3 J-Pipe and ATLP Quad exhaust and I am very happy with the results and sound. Agreed it is a little pricey, but I feel it's a better route to take than trying to piece together your own trying to find the sound that you like.

akertulis

yea i have seen that setup does sound very well together, highly thinking that same route

swoosh

iTrader: (5)

its more than sound and performance....its about you designing your own exhaust....

you reading you researching you trying and you failing and finally you succeeding....

with the exhaust from the vendors (even though they are great) you wait you pay you install (30minutes to an hour) you drive....

you dont know what resonator is on there....what muffler is (straight through/race/perforated) so you are just buying an exahust...not designing it or building it

just my 2 cents

akertulis

and its more expensive

Yonkers914

iTrader: (1)

bunch of good mufflers out there but i would go with magnaflow mufflers just cause i have them lol

RainSupreme

I agree with you guys...if you have the means, money, and resources to build you own custom exhaust I would def do it, I however didn't have those options so I decided to do the latter. The ATLP system comes with a magnaflow resonator.

swoosh

iTrader: (5)

what part# do you have ?

actually the exhaust in all does run cheaper....even after 3-4 tries you will be way less than one of the exhaust system out there....but yeah finding the right exhaust shop is a challenge....

akertulis

i already have a good exhaust shop i go to, excellent welder and really knows what hes doing. i think i have a set-up in mind now just need to pursue it

LasVegasTL

I have custom 3" piping from my J Pipe back. Plus the two Magnaflow mufflers I ended up paying only $600 total.

HeartTLs

iTrader: (5)

No resonators? T304 metal?, seems cheap compared to what I heard would cost a custom shop to replicate a rv6, ATLP or xlr8 exhaust.