ZhiuPei

iTrader: (18)

Today i did a muffler delete and replaced with a 2.5 piping with magnaflow tips..

For some reason i feel that i lost end torque..

I still have the full OEM piping from the cats all the way after the resonators..

Anybody have experienced the same?


Any inputs

thanks

maxx430

correct me if i am wrong, but i read somewhere going 2.5" is a no no if you dont have certain mods. just delete the resonator if you are looking for beastly sound.

ZhiuPei

iTrader: (18)

nonononon i dont want crazy sound..

I just wanted to delete the mufflers.. My tip is a 3 inch in

So i thought 2.5 would be ok..

I dont remember reading about the 2.5 nono

But it sure sounds a bell..

Now im debating on going back and changing my pipe!!! gahhhh


thoughts?

Jewcano

iTrader: (4)

Why did you change your mufflers but are hesitant about changing your resonators?

The tips are 3 inches, but they are just that.......tips.

Stock piping is 2.25".

The larger the piping the less back-pressure = less low end torque.

Ergo, you need to have an FI engine for larger piping.

818GS

iTrader: (4)

The reason you lost torque is because you lost back pressure when you went with bigger piping. Stock is 2.25". The only other route you can go to use this to your advantage other that FI is get an SRT intake and tune you car.

ZhiuPei

iTrader: (18)

Jewcano, i didnt replaced the resonators because i wanted to keep them a lil bit quieter..

Now that i know the reason on this, I think im gonna have to end up changing the piping to 2.25..

828gs i already have an srt intake.. still no help..
sadddd

When i left the shop i was happy cuz of the sound but sad cuz i lost torq =-(

thanks guys

Jewcano

iTrader: (4)

Wait.....you didn't remove the resonators cause you wanted to keep it quiet? Do you know what mufflers are for? The name implies their purpose, to muffle.

You need to put your mufflers back on and yank the resonators or put in high flow parts in which will keep it quiet without killing your low end torque too much.

818GS

iTrader: (4)

Exactly. If you want it to be quiet but gain performance take out the resonators and leave the mufflers.

pinoiryder

iTrader: (5)

not to jack this thread.. I have remove my resonators and wanted to remove the muffler, and replace it with straight pipe, is this a no no?

ZhiuPei

iTrader: (18)

I have never thought about it that way...
MMM

Ill think about it..
thanks guys

GS4hunnit

Ive removed the mufflers and replaced them with 3in piping, from the flange where the mufflers would bolt up to the rear. Would this mod be considered as part of the "piping" or just something like a "straight-through" 3in axle back?

ZhiuPei

iTrader: (18)

Yup u will experience the same issue as me..
gah!

818GS

iTrader: (4)

This is fine. Nothing wrong with it.

818GS

iTrader: (4)

Same thing as the OP but you should feel more torque lost but it shouldn't be that bad for either of you since it's so down the piping.

GS4hunnit

Honestly I didnt notice any loss in torque, if any thing I gained some. Perhaps its because the mod is so far back in the exhaust system (axle back) that it didnt effect bottom end performance. In addition, the car sounds mean, deep and throaty. I recommend it if you dont want to spend so much money on a catback that will yeild roughly the same performance( If any).