Art17

Hello everyone,
I currently have the Burger Motorsports "Mercedes Benz C250 JB+" and "BMS C250 Performance Intake". I have a resonator and muffler delete. Some say that a vehicle must be tuned in order to have straight pipes. However with these two mods I believe that it should be enough to handle it. If I were to remove my cat, how would the car perform? I do not care about loudness, the louder the better. My concern would be the performance with the two mods I stated.

xjaymzzx

Since you have your mufflers deleted, don't you lose the needed back pressure? On a c300, you would lose low end torque and gain high end horsepower. When i put in magnaflow performance mufflers, i felt a big power difference (butt dyno), as compared to when i did a muffler delete and straight pipes.

DameMD

Turbo cars react differently....The less restriction and bigger piping allows for more power on turbo cars. The only thing is the c250 might be really loud or raspy by it being a 4cyl. If the c350 sounds like crap with straight pipes all the way back then I cannot imagine how the 4cyl would sound.

paleface

Yep, its true. But im suggesting dont remove the cats. I already done that with my setup now. I changed the downpipe (remove cats), quad exhaust setup, jb beta n jb intake. Lose the low end torque.
Now im planning to change the setup. I want to put 100cell cats at downpipes, we'll see the result.
So, if you want to make your car louder n still get the power, im suggesting remove the resonator, but replace the original muffler with aftermarket. So you dont lose the back pressure.

kkd79

You bought the wrong car to mod

AV1

^^^ Don't worry it's still early days for this particular MB engine, there'll be lots more mod potential down the track.

Taking into account that the same engine is employed in other higher volume MB models eg. new A Class, then tuners will definitely devote R&D towards it because there'll be a market for them

AllEyesOnMe

Do you have anything to back up this statement or is it just your theory?

I have straight pipe (catback) and did not install aftermarket muffler because it would quiet down the sound.

Btw, do you have a video clip of your catless setup? Also, please keep us updated on your new setup. I'm considering removing my cats.....

paleface

Its not just my theory, but from my experience. I already try the straight pipe setup (no resonator n muffler) and the result lose the low torque. Now i use custom muffler n custom resonator. And i make it quad exhaust setup.

I dont record the sound for straight pipe setup cause i dont like the result. I only use 2days with the straight pipe setup and i change it. I will update if i already get my 100cell cats n install.

Utishi

Did exhaust sound get quieter after you switch from straight pip to custom resonator + muffler?

xjaymzzx

For me, i went from x pipe and no mufflers (straight pipe) to x pipe and magnaflow performance mufflers. I felt the difference in low end torque! And its alot quieter. Still loud but a deeper kind of loud. Not a ricer sound

paleface

Yap, but i like it. Cause i get better low torque then straight pipe.
Dont just focus at the sound. For me, i prefer get better performance then better sound.

oldsinner111

read my exhaust mods

giovanni821

I did a muffler delete and the car ran like ****. I put the stock muffler back on.

oldsinner111

maybe your car has to have backpressure,but my Nitrous kit says to do so anyway.yes it gives me more top end performance with out the nitrous