Best X-pipe

[slipaway37]

I recently spent a couple of weeks contemplating your same situation. The bottom line is that any x-pipe that removes the primary/secondary cats is the most bang for your buck, but with consequences. I chose the x-pipe configuration because upon smog check I can simply bolt-on the OEM pipe.
I recently installed the Gintani x-pipe and the gains were VERY apparent; however, combined with my MPE the sound is extremely loud and raspy as hell even with four resonators. I also like how much lighter this x-pipe is compared to stock, and I did have the O2 sensors bypassed. I am told that Gintani places the "x" exactly where it should be, but I"m no exhaust expert.
You must also be prepared to handle the smell of a catless system which realy isn't all that bad, but it is there. I do not get any drone, but do get lots of rasp and under heavy acceleration or downshifts my car makes people "jerk" with surprise. It seems that I went from a mean growling beast of a machine to an outright hellion of a screaming race car. If you have a fam that rides in the car I wouldn't suggest it at all unless they are all gear heads, lol!
I have heard that this x-pipe paried with the OEM exhaust is much more "tame" and sounds good. I will find out 1 Dec at the next track event as a friend of mine has this configuration, and this time I will pay much more attention to his sound.
Looks like I'll be selling my MPE soon, but oh well. I simply loved how it sounded with the stock x-pipe, but the HP gains are awesome and I'm not going back to a full stock system.
Best of luck to you.

[SilentAttack]

anyone running the Challenge race pipe with Megan axle back?

[MrStinky]

Originally Posted by SilentAttack

anyone running the Challenge race pipe with Megan axle back?

I have encore innovation xpipe with hfc and I've had Aa pipe with hfc. The EI is way louder and higher pitched. Both I had stock rear muffler. I'm not sure how one xpipe can be so much louder but of course I ended up keeping louder one maybe the pipes are thinner ?

[Notnug]

Delete the cats to really get the power. If you don't mind working on your car and have the tools just put your stock one back on for emissions tests. I have a catless Fabspeed x-pipe with Gintani muffler. Love the sound and power but drone is bad.

[SflBimmer8484]

Hi,

Our X pipe was designed and engineered to work with most after-market exhaust systems/mufflers on the market today without the need to cut, weld or modify anything. Our system also eliminates the secondary cats and the primary cats to unleash the maximum amount of hp while still maintaining a great tone.

Dramatic weight savings are also gained when one compares the factory system at 40 lbs and the Active Autowerke Signature X Pipe weighting at a mere 25 lbs.

If you have any further questions please let me know.

X-Pipe Catless

X-Pipe W/ 100 Cell Catalytic's

[tom @ eas]

DLSJ5's VT3-725 Supercharged beast strapped to the dyno. Best run was almost 700whp equipped with a Macht Schnell Race X-Pipe and OEM muffler.





DLSJ5's M3 also just claimed the 1/4mi M3 Trap Speed record @ Famoso with 10.81 @ 135.x.

[JPH704]

Needs video ^^^

[rjd598]

Originally Posted by tom @ eas

DLSJ5's VT3-725 Supercharged beast strapped to the dyno. Best run was almost 700whp equipped with a Macht Schnell Race X-Pipe and OEM muffler.

DLSJ5's M3 also just claimed the 1/4mi M3 Trap Speed record @ Famoso with 10.81 @ 135.x.

When did ms come out with an xpipe?

[tom @ eas]

Originally Posted by rjd598

When did ms come out with an xpipe?

Quite recently. DLSJ5 has been quietly testing for some time as he's excellent at gathering data and real world feedback.

[Grail05]

Originally Posted by Dave07997S

Stock with Turner Test pipes...

Dave

THIS...

OP save money and do this.. seriously its your best bet.

[Sebringjetta]

ok someone set me straight!!!!! if you purchase a aftermarket X-PIPE for this car that only removes the secondary cats and res. it will not kick a CEL correct?

[kawasaki00]

Originally Posted by Sebringjetta

ok someone set me straight!!!!! if you purchase a aftermarket X-PIPE for this car that only removes the secondary cats and res. it will not kick a CEL correct?

Correct

[Sebringjetta]

Originally Posted by kawasaki00

Correct

so if you keep the primary cats and remove the secondary cats and res how much louder is the the exhaust w/ a aftermarket section 3? in your opinion is it a clean sound?

[kawasaki00]

Originally Posted by Sebringjetta

so if you keep the primary cats and remove the secondary cats and res how much louder is the the exhaust w/ a aftermarket section 3? in your opinion is it a clean sound?

With a sport or one of the quieter rear sections it is not bad. Imo any rear that has a straight through design like the mpe it is bad raspy. Even the oem mod sounds terrible with a altered x pipe.

[W///]

Originally Posted by Sebringjetta

so if you keep the primary cats and remove the secondary cats and res how much louder is the the exhaust w/ a aftermarket section 3? in your opinion is it a clean sound?

It increases volume but not by a giant amount. If you do test pipes (which IMO is the way the go with these cars, mostly because of big power gains), then the volume goes way up regardless of what muffler you have.

[Sebringjetta]

Originally Posted by W///

It increases volume but not by a giant amount. If you do test pipes (which IMO is the way the go with these cars, mostly because of big power gains), then the volume goes way up regardless of what muffler you have.

i just dont know if im up to going back and forth for smog....if i keep the primary cats im sure i would pass the the visual....

[sales@ESSTuning]

Originally Posted by Sebringjetta

ok someone set me straight!!!!! if you purchase a aftermarket X-PIPE for this car that only removes the secondary cats and res. it will not kick a CEL correct?

Our HFC X-pipe uses a primary high flow cat in the factory location and replaces the secondary cats with resonators. This design allows the car to not trigger a CEL and allows for improved performance while also providing a more agressive tone. It is a good match with our mufflers, the factory mufflers if you do not want to replace them or any aftermarket mufflers that have OEM fitment.

We also have a full catless option that runs two sets of resonators if you do not care about being emissions compliant.

[jackz]

I want to know what the SOSI X Pipe sounds like with the Megan racing axle back. Does anyone have that combo?

[tareemaa]

Removing the secondary cats does not trip a cel, nor will it fa emissions unless you are in a state using and sniffer opposed to just plugging into the obd2. Like a few above have said, the gains are very similar, there is really not a lot of difference in design between pipes. Challenge or MS take my vote, I'm running MS with primary and secondary deletes, it comes with a pair of resonators and I have a Corsa outback, in my opinion, and in most who have heard my system, this is as good as it get in terms of a unique exotic sound, volume, and minimal drone. I have the bpm tune, passed emissions without any issues, no cel.

[InspireSiR]

You passed a smog check without any cats??? What's the point of states having smog checks then? lol

Originally Posted by tareemaa

Removing the secondary cats does not trip a cel, nor will it fa emissions unless you are in a state using and sniffer opposed to just plugging into the obd2. Like a few above have said, the gains are very similar, there is really not a lot of difference in design between pipes. Challenge or MS take my vote, I'm running MS with primary and secondary deletes, it comes with a pair of resonators and I have a Corsa outback, in my opinion, and in most who have heard my system, this is as good as it get in terms of a unique exotic sound, volume, and minimal drone. I have the bpm tune, passed emissions without any issues, no cel.

[SilentAttack]

I ended up going the ACM test pipe/rear section route. I love the setup!!

[tareemaa]

Originally Posted by InspireSiR

You passed a smog check without any cats??? What's the point of states having smog checks then? lol

Yeaup, in Illinois they don't use a sniffer, they just plug into your obd2, I have a tune which shows everything being ok with no cel so they passed it