The custom/aftermarket exhaust thread! [Pics + Videos]

[j-san]

Originally Posted by malibuguy

To be honest. Keep the stock exhaust for mpg. I usually have run about 3mpg less with my exhausts. Most of the fact that I love to listen to my exhaust. Plus the stock exhaust is better matched for low rpm performance.

A typical muffler shop will only crush-bend tubing. So their 2" tubing is typically smaller in the bends then your stock midpipe. So the only thing your getting is no improvement in exhaust flow and lower quality tubing that will rust out eventually.

I suggest a rear section exhaust for some power and sound and not throwing away all your mpg.

These motors really love a full exhaust so real gains in power can be realized

Thanks much for the advice. I may just look into getting a axle-back system like the Tanabe Medalion and leave the rest stock. Maybe have the shop weld in another resonator if I find the aftermarket muffler too noisy.

[dekraberd]

[salmanghiyas]

what is the basic function of these cats ?
please suggest what option from below should i go, for the maximum HP gains .. regardless of fuel economy ..

1: remove both cats and resonator and put a straight down pipe of 2" or 2.25" ( please suggest which is better 2" or 2.25" ) till the end ...

2: keep the 1st cat and remove the second cat and the resonator and put a straight down pipe till the end ...


3: keep both cats and just remove the resonator and put a straight down pipe till the end ...

4: keep both cats and resonator just put a straight down pipe after the resonator till the end ...

5: remove both cats just keep the resonator and put a straight down pipe till the end ...

[mario98c]

Remove both cats with 2" exhaust and magnaflow freeflow muffler

[salmanghiyas]

Originally Posted by mario98c

Remove both cats with 2" exhaust and magnaflow freeflow muffler

u mean from the header neck .. i put a 2" pipe then in the middle put a resonator .. and at the end use the magnaflow muffler ?

[mario98c]

Originally Posted by salmanghiyas

u mean from the header neck .. i put a 2" pipe then in the middle put a resonator .. and at the end use the magnaflow muffler ?

That's correct.

[salmanghiyas]

Originally Posted by mario98c

That's correct.

Awrite :)

and what roughly expected HP gains i would get ...

[mario98c]

I can't tell you exact dyno numbers because I never visited a dyno after installing the exhaust but you will definitely feel the difference in acceleration. You will not regret doing it.

[salmanghiyas]

Originally Posted by mario98c

I can't tell you exact dyno numbers because I never visited a dyno after installing the exhaust but you will definitely feel the difference in acceleration. You will not regret doing it.

ohkhay ...

if i use 2 resonators in the middle .. just for lowering exhaust sound .. would it effect the performance ?

[mario98c]

Originally Posted by salmanghiyas

ohkhay ...

if i use 2 resonators in the middle .. just for lowering exhaust sound .. would it effect the performance ?

I don't think so but with one resonator the car is quiet enough that it won't bother you cruising at normal speed.

[mario98c]

Here is a video of my car with 2" exhaust, magnaflow imitation muffler(the original magnaflow should sound better) and a magnaflow 2" glasspack as a resonator. With the OEM Toyota resonator I think the car should sound better.
https://www.youtube.com/watch?v=d_tajogfKAk

[salmanghiyas]

Originally Posted by mario98c

Here is a video of my car with 2" exhaust, magnaflow imitation muffler(the original magnaflow should sound better) and a magnaflow 2" glasspack as a resonator. With the OEM Toyota resonator I think the car should sound better.
https://www.youtube.com/watch?v=d_tajogfKAk

Very nice

[salmanghiyas]

Originally Posted by mario98c

Here is a video of my car with 2" exhaust, magnaflow imitation muffler(the original magnaflow should sound better) and a magnaflow 2" glasspack as a resonator. With the OEM Toyota resonator I think the car should sound better.
https://www.youtube.com/watch?v=d_tajogfKAk

if i'm not mistaken ... the point you are making here is ...

the original OEM resonator in the catback which basically is the third one in line ... has 2" in and 2" out pipe width ?

[salmanghiyas]

Yellowww ...

[salmanghiyas]

im getting too confused now .. :S

some say go with max 2" pipes some say nah its ok even if u take 2.5" pipes .. some say keep the 1st cat .. same say remove both cats and have only one resonator in between ... :S

im surfing over the forums and internet from the last few days now ... but honestly speaking the more and more im reading stuff the more im getting confused ... :S

i did experimented one thing ... i put a 1.7" pipe ( 1.7" measurement from inside ) from the neck of the headers, removed both cats and resonator till the rear bumper and installed a topspeed muffler at the end ... the inlet of the muffler was 2.5"

[Freestylin]

^ It depends what your long term hp goals are to determine which pipe diameter to go with. Here is a good read:

http://www.magnaflow.com/07techtips/faq/question10.asp

[malibuguy]

finally got around to getting mine back on the dyno with the current exhaust...no real difference over the old set up peak vs. peak...but after peak power was up like 7whp...

http://www.youtube.com/watch?v=yRBfjMLSNDU

[clint]

Removed stock muffler and replaced with shown baffle and tip. I think it sounds pretty good!!