MartinWake

Hello everyone I have a 2003 CL55 and it has the stock exhaust but it is a little too silent for me coming from a straight piped CL500 anyways I have been reading around to find out whats best to do. My idea was to remove the resonators and in its place put an X pipe or an H pipe, from what I read online one gives you more low end torque and one more higher rpm peak power,

but I also read that both reduce back pressure which lowers the supercharger psi but its a good thing which from what I read means that even with lower psi you make more power. I also saw that one gives it a more American v8 sound and the other one a more exotic v8 sound. Which do you guys think would be best to do? my car is still stock but I will eventually be moving into cooling upgrades then pulley and all that good stuff, I also wanted to ask for which ever one I go for what size x pipe or h pipe do I have to buy so it fits good? I do not know what size the stock exhaust is right before the resonators. If there is a better option for me to do please let me know this is what I had in mind but there could be something else to do.

Thanks!

MartinWake

Anyone know the size of the piping right before the resonators so I can buy the same size x pipe or h pipe?

Ford9498

I’m not sure but I think I read somewhere that the exhaust is 2.75.

MartinWake

Yeah I saw that size too, I think the shop will know what to do.

Ford9498

So did you get your exhaust done yet? I was thinking of trying to put some cut-outs in upstream of the resonators and see how it sounds.

MartinWake

No not yet I had to spend money on a new radiator and water pump.

MartinWake

did them today, I put an x pipe where the secondary cats went and straight pipes for the resonators, it sounds good gonna post a video tomorrow

Ford9498

Nice! Did you fab this up or did you find a kit for it? Did you install it? Got any pictures of the install? Ready for the video and I bet it does sound good.

MartinWake

It was fabricated for my car pretty easy I have all the videos of when they where doing it gonna post them up soon just need last couple sound clips.

Ford9498

Any videos yet? I’d love to hear it!

MartinWake

Sorry for the wait but here it is!

Ford9498

That does sound better! Do you have pics of the install?

MartinWake

Yes it sounds better but not as loud as you would think. also I took a video of that I will post it soon.

MartinWake

sorry it took so long here it is