i changed the name of the thread to get some more ideas. so please list what size, brand, or if custom the amount of resonators.
as of now the trd axel-back is my only exhaust mod.

i think its finally time to get rid of my axel-back and im open to suggestions. i had an appointment for the 9th of this month to get my car tuned that i have since postponed till i get a new exhaust system. when i told the tuner i plan on getting a new exhaust eventually he said it will make a big enough difference that i should do it before tuning and he would get a 2.5" over a 3" due to the loss of low/mid i might see with a 3".

i really like the ptuning v2 but will 3" be overkill for my sc?

 

yes 3 inch is too much unless your pushing 300 or more hp,but only turbo charge

 

Power was gained over the entire power band when they went from a 2.5 Megan to a 3 inch PTuning. Power was not lost, even down low. Best way to optimize the 3inch though, would be to get rid of that TRD reflashed ECU, and pick yourself up a stock ECU and toss on some real engine management.

See dyno sheet below.

http://www.ptuning.com/html/additional_info.cfm?cmbProdInfo=C|PTPEXH1001

 

From what I understand, comprehend and read you want some backpressure for a supercharger. So yes.

 

it is really over kill, and will be loud as hell, especially if you have an after market header. no, you really won't lose any power. i went from supercharged at 7 psi with weapon-r header and s-pipe and trd exhaust, to full 3 inch exhaust and gained 3 whp (209 to 212) and lose less than a pound foot of torque.

but keep in mind, your car will be loud as hell. my set-up was over 140 decibels at WOT, and that was with a high flow cat, resonator and muffler.

http://www.youtube.com/watch?v=m7RFaiKu-LA
http://www.youtube.com/watch?v=FsVbnOC-Y-c

keep in mind those video's are shot from up on a hill, my camera person wasn't even close to the course.

you don't need more than 2.5

and this is how that same exhaust with a turbo:
http://www.youtube.com/watch?v=RyEIdyPpouA

 

What he ^^^^ said, I went from 3in to 2.5 because my exhaust was too loud. Police gave me a warning for it being too loud and also had to softly drive in my neighborhood because the neighbors reported me a couple times.

 

ya i have seen that dyno thats why i was considering going with the 3"
i have a unichip that i will get tuned after i get my new exhaust on

wow it sounds great in the third video. i dont have an aftermarket header i wanted to go with the weapon r, then two 2.5"resonators and a universal muffler on the end but that would be more expensive and produce less power. currently i have sc, 9.5lb pulley, unichip, weapon r intake, and trd axel-back.

when i talked to ptuning yesterday they assured me the new version 2 is quieter then the version 1, which has one less muffler. they also said if i keep my stock exhaust manifold on it would sound good even as a daily driver. im wondering what 3" exhaust components you guys have or had before; brand name or custom and was that n/a, sc, or turbo?
thanks for the input

 

I don't have any dyno results or videos to post but I agree with Drax 100% on this. I went with a full 3" exhaust and hated it. Now running 2.5" and loving it, even if I'm losing a few hp and ft-lbs at 5000rpm+.

 

fred what kind of 3" did you have, any resonators?

and drax did you have the weapon r header on in the first two videos above?

 

I had the CXR full 3" with 2 resonators and it was so loud I had to keep the silencer installed. It was still too loud. I had the front resonator replaced with a large 7" x 18" Magnaflow resonator and it was still too loud even with the silencer. The over-axle section of the CXR exhaust didn't fit very well so I had it replaced with 2.5" pipe into a 2.5" TRD axle-back and I love it. Unless you're planning on making a lot of whp or like loud I don't see much benefit to going 3" over 2.5".



CXR 3"

 

Thanks for your comment thats good to know. Did you have header at the time?

 

I had the PTuning exhaust V1. I seen the V2 but 3in is still gonna be too loud if your gonna have headers, it looks nice and before the V2 came out I was gonna try putting a HKS muffler on the tip but as I said above the system was still gonna be too loud.

3in is not overkill but it just too loud and will eventually get annoying as a daily driving (ears rang) in the morning. if you want HP go with the PTuning but for daily sound quality go with 2.5, like Greddy SE or something like HKS

 

Have you considered checking with a muffler shop and seeing what they offer for a full build through them? They can put in every part you want in the exact size you're looking for and can sometimes be pretty cheap compared to a fully built/prepped system that you then have to ship.

I've had a few friends go to Muffler King up in Kirkland if you're going to be up ovre there for Carb Conn anyway. Might be worth giving them a call and getting a quote before you drop money on a pre-built kit.

http://www.mufflerkingperformance.com/

 

yes, that was with the weapon-r header.

 

I was already turbo'd at the time. The CXR exhaust would be "pull me over immediately!" loud with a header. But who would want a 3" exhaust with a header anyway? I can see it with a big turbo, 400+whp and raised rev limiter but even supercharged, 3" is overkill for a little 2.4L.

 

well i think you have all sufficiently talked me out of the 3" ptuning s-back so now im on the hunt for a good looking 2.5" universal muffler to go custom. does anyone have recommendations for resonators?
thanks ill check them out. back when i had my integra i did a custom 2.5 and it sounded great, so i have had it in the back of my mind as an option for the tc

on another note i started reading Mediocre Motoring... very funny stuff

 

trd for me as of now ith a mmw header, injen intake AEM FIC and a 9 pound pulley.. but yeah the main difference maker is the damn header when it comes to noise.. ikinda sound like a honda now

 

Now we just need to talk you out of a Supercharger and go turbo instead. S/C = Fail. Turbo + 3inch is where you need to be.

 

Regarding universal mufflers and resonators, you can pretty much go with whomever has the best combination of prices, brand name that you like, and over all look. Some companies that everything you're looking for are Magnaflow, Borla, Flowmaster, etc. I think Vibrant might make that stuff too and they're also a good name. Click around a little on their sites and see which ones look/sound the best (sometimes they have sound clips, no promises though).

Glad you're reading Mediocre! I don't have enough time to write 2 posts per week anymore so I'll likely only be doing 1 per week nowadays, but there are plenty of back issues and articles to skim through if you're bored.



I always struggle with this statement. I understand and for the most part agree, but at the same time I can see the appeal of the supercharger. Not everyone is looking for the power levels, not everyone hits the track, and not everyone is looking for the relatively higher cost associated with a turbo kit over a supercharger setup.

For a daily driven car not looking to go insane with the boost, not planning on doing serious track duty and just looking for a little extra punch, I think the S/C is a great call for the price and availability. Minor potential failures aside, a turbo has just as many potential problems associated with it.

Not trying to start a S/C vs. Turbo argument as that has been well and truly beaten to death by us all here; just voicing my thoughts.

 

I am so glad I just read this thread.... and almost blew my speaker system listening to draxcalibers exhaust videos.

I was thinking of going to the 4-2-1 header with the 3" p-tuning... help with the supercharger flow, but not at the cost of being rediculiously loud and costing over a grand.