Merc63

Just in the middle of fabricating our custom X pipe. I've place it where the secondary cats would be in front of the resonator.

I got a few pics to post and a sound clip will be added once we are done here.

Pretty straight forward job... Lucky me my lil bro is a welder

Merc63

Before:

http://s1048.photobucket.com/albums/...ent=BEFORE.mp4

After:

http://s1048.photobucket.com/albums/s378/mercamg63/?action=view&current=AFTER.mp4



The videos don't quite get the raspy sound as its more pronounced when you
re down shifting and getting off the throttle... But you can tell the sound is more even and balanced. In the car isn't as loud either. Low end feels crisper and more responsive too.

Pic of the final fitment tacked together ready for final weld.


Anyone that has LTH would really benefit from this mod. its makes the exhaust note much more clearer and civil.

Merc63

A few videos of the car driving. Tires are bald as **** and the road was wet so it was spinning badly.

You can see the rasp is gone if you compare it to the video another guy just posted of his MHP LTH install.

Merc63

Video of LTH without X pipe. Raspy and then gargles on decel.

vessproms

sounds sick

Merc63

Not much love on here these days,

Mort

Lots of respect for doing this yourself and doing what appears to be a high quality job and fitment. Nice you have a brother with skills to help you out as well.

Aside from the hard work you and your bro put into designing and doing this mod to improve your ride thanks for all the work you put into sharing this information with us. Job well done all around!

ara

I was so excited about the videos and the sound with an x pipe, then i realized you have headers too

I don't want catless for myself, i wonder if high flow cat headers are made for these cars. Regardless, WOW your car sounds amazing

Merc63

Yes MHP has high flow cats that you can order instead of straight through mid pipes. It adds to the price and robs a bit of power though.

Thanks Mort, but my lil bro did most of the grunt work. He did a fabulous job. Only took about 5 hrs from start to finish and cost under 100bucks.

_AMG_

Clean job on making the X pipe! Sounds great too.

ara

couldn't find the high flow cat headers anywhere, anyone got a link?

Merc63

http://www.modernhorsepower.com/cgi-...=MC63MHPC63LTH

"MHP LTs with Catalytic (Metallic Substrate 200-300cpi)Mids"

At the bottom of the paragraph it gives you options for cat or cat-less mid pipes.

Why do you want cats?

ara

I don't mind an x pipe for secondary cats, but as much as I love power. I really don't want to run catless, A. for smell B. excess loudness C. environment

GHAZAN

How much for one just like that - just the X portion, then I can have my local shop weld it to the mid-pipe?
I'd love to buy one and give your bro some business. It's a 3" x pipe?

Merc63

I just used steel for mine. So cost was about 100 bucks. But if you want stainless the two U bends are 200 bucks. I painted mine with exhaust paint so it wont rust... Im not sure what he would charge to do it, I can ask if you want?

PM me if your interested... you would have to get your exhaust shop to cut it to fit in there. You have MHP LT and mids right? It requires you to cut your mids, then cut the X pipe to fit and weld to the mids. The X pipe slides over and clamps into the male and female ends which are supplied in the MHP kit... So it connects to the resonator without any welding...

Ya its a 3" X pipe.

Merc63

http://s1048.photobucket.com/albums/...t=IMG_0172.mp4

Cold start with X pipe. It used to crackle really really loud before the X pipe.

EkS

Video not working.

BerBer63

Any dimensions on your X? like width from end to end of the [OO] or the gap between the Xs? Might have a local shop make one. I purchased a magnaflow X but I don't think it's a direct weld in option.

Merc63

I bought that Tru X pipe from Magnaflow too.. Its junk. Doesn't fit and the design of it is poor as its stamped together.

My brother is fabing up a couple more of these at work.. If you want one let me know, it will be identical to mine, but you will have to get an exhaust shop to cut it to length and weld it in.. Give me a PM if you are interested.

Merc63

It works now

Merc63

If anyone wants one of these done up let me know. My bro is gonna make a few this weekend, pls PM me.. A few guys already have orders in place.

EkS

That cold start up sounds a lot better with the x-pipe.

farhadahmad

this video only has LTH from MHP on the exhaust?

farhadahmad

so do a cat delete and put this X pipe would be good or do a resonator delete and put the x pipe? which would be better?

ShaneN.

I like how you managed to use the word "civil" when describing the sound of your car. And I mean that in the very best of ways!!!