Straight Pipes VS. X-Pipes Video

Lizard · 05-11-2008

I had my resonator replaced by straight pipes a few weeks back While I love the menacing start-up and the shear volume of accelerations, I didn’t like the gargling and flapping sounds that occurred at idle and low speed.

Had a Magnaflow x-pipes put in on Friday and really enjoy the cleaner, more melodic tone that it has. It’s not as loud as the straight pipe but there is a nice wail that I now notice at anything above 4k. Like a lighter version of a F430 exhaust. It’s more European sounding where as the straight pipes sounded more American / Harleys like.

This one is with the straight pipes:

YouTube Video

This one is with the x-pipe:

YouTube Video

**alroumi** · 05-11-2008

Substantial improvment, sounds much cleaner and better. I think its more civalized.

*DansSlk* · 05-11-2008

Wonderful

**Cold Shot** · 05-11-2008

I have been struggling with whether to go with x-pipes or not. I like the sound at full acceleration, but think it is a bit too rough and unrefined at idle and low R's. This definately helps me. Thanks for doing the comparison.

**dsb** · 05-11-2008

Nice videos. It makes the comparison very easy.

I think you've described the difference perfectly.

Straight pipes- Louder. Very rough at low rpm and idle (I think a bit intrusive and this is where people mention tractor sounds). As rpm increase, sound is relatively the same, just faster.

X-pipe- Louder than stock. Somewhere between OE and Straight pipes. Nice burble when letting off the gas. Sound changes as rpm rise making it more pleasing.

Overall I say X-pipe... Of course, I'm biased. Glad to hear you're enjoying the mod.

**alroumi** · 05-11-2008

As means of comparison here is mine with the SuperSprint/Carlsson xpipe and Kleemann 200 cell secondary cats WITHOUT headers.

YouTube - Hear me Roar

mtiede · 05-11-2008

Great comparison. Amazing what a difference it makes. That first one sure does sound like my uncle's diesel tractor

rb136 · 05-11-2008

Theoretically, the x-pipe will slightly lower restriction from the x-pipe back. The pulse from each cylinder get's split in half at the X so the pressure waves in each pipe don't peak as high even though there are twice of many of them. Much smoother flow. After Green Filters and the X, I have been able to pull about 2 mph higher on the front straight at TWS. Out of 7 events, 5 of them were without the X and greenies. Both of the events I ran after the install were consistant.
Many people say, and I tend to agree, that the X makes the car sound more like a V8 with a 180 deg or "flat" crank.

Lizard · 05-11-2008

Thanks to DSB again for the original posting that inspired me to test out my own vehicle.
I do like the x-pipes sounds better, but must admit that I miss the start-up sounds of the straight pipes a bit. But it's a very good trade off for a more refined sound.

**dsb** · 05-12-2008

Quote:

Originally Posted by Lizard

Thanks to DSB again for the original posting that inspired me to test out my own vehicle.
I do like the x-pipes sounds better, but must admit that I miss the start-up sounds of the straight pipes a bit. But it's a very good trade off for a more refined sound.

No problem. Straight pipe start up is loud and scary... in a good way. It's only at idle and cruising that loses it's appeal.

RB136 makes a good point about the Xpipe's benefits. I haven't noticed a speed increase but I don't own all that fancy equipment either. Wish I did though!

05-11-2008	#2 (permalink)
alroumi Moderator Join Date: Jun 2006 Location: Kuwait City, Kuwait Vehicle: 2006 Kleemann Designo Mocha Black SLK55 AMG Other Toys: 2007 Ebony Jaguar XKR Coupe' and 06 Black Cayenne S Posts: 5,930 Country: Thanks: 224 Thanked 129 Times in 80 Posts	Substantial improvment, sounds much cleaner and better. I think its more civalized. __________________ 06 Kleemann Designo Mocha Black SLK55 AMG 06 Porsche Cayenne S 07 Jaguar XKR Coupe' I use the Torque and keep the HP for my Steak Sauce!

05-11-2008	#3 (permalink)
DansSlk Moderator Join Date: Jun 2006 Location: Wales Vehicle: 05 B55S (Brabus 6.1 S) Posts: 6,121 Country: Thanks: 73 Thanked 61 Times in 46 Posts	Wonderful __________________ One thing you will learn with German cars - If it's simple it ain't happening.

05-11-2008	#4 (permalink)
Cold Shot Elite SLK World Member Join Date: Feb 2007 Location: Scottsdale, AZ Vehicle: 2007 SLK55 AMG Other Toys: 2007 ML 350 Posts: 583 Country: Thanks: 71 Thanked 51 Times in 25 Posts	I have been struggling with whether to go with x-pipes or not. I like the sound at full acceleration, but think it is a bit too rough and unrefined at idle and low R's. This definately helps me. Thanks for doing the comparison. __________________ "Like a Cold Shot, baby" - Stevie Ray Vaughan To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts. ~~~~~~~~~~~~~~~~~~~~ 2007 Black/Black SLK55 AMG (Green Filters, SmartTop V1, Eurolight Clear Side Markers, R170 Modded Antenna) 2007 Pewter/Black ML350 19xx White/Blonde Wife (Lmtd Edition Model)

05-11-2008	#5 (permalink)
dsb Elite SLK World Member Join Date: Jul 2006 Location: NorCal Vehicle: '06 slk55 Posts: 995 Country: Thanks: 7 Thanked 22 Times in 14 Posts	Nice videos. It makes the comparison very easy. I think you've described the difference perfectly. Straight pipes- Louder. Very rough at low rpm and idle (I think a bit intrusive and this is where people mention tractor sounds). As rpm increase, sound is relatively the same, just faster. X-pipe- Louder than stock. Somewhere between OE and Straight pipes. Nice burble when letting off the gas. Sound changes as rpm rise making it more pleasing. Overall I say X-pipe... Of course, I'm biased. Glad to hear you're enjoying the mod. __________________ '06 Mercedes Benz SLK55 Caspian Blue / Black & Ash / DPE 19" R07s, Other Stuff *To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.*

05-11-2008	#6 (permalink)
alroumi Moderator Join Date: Jun 2006 Location: Kuwait City, Kuwait Vehicle: 2006 Kleemann Designo Mocha Black SLK55 AMG Other Toys: 2007 Ebony Jaguar XKR Coupe' and 06 Black Cayenne S Posts: 5,930 Country: Thanks: 224 Thanked 129 Times in 80 Posts	As means of comparison here is mine with the SuperSprint/Carlsson xpipe and Kleemann 200 cell secondary cats WITHOUT headers. YouTube - Hear me Roar __________________ 06 Kleemann Designo Mocha Black SLK55 AMG 06 Porsche Cayenne S 07 Jaguar XKR Coupe' I use the Torque and keep the HP for my Steak Sauce!

05-11-2008	#7 (permalink)
mtiede Founding Member #7 Join Date: Jun 2006 Location: Western New York Vehicle: 2006 SLK 350 Posts: 1,255 Thanks: 33 Thanked 18 Times in 13 Posts	Great comparison. Amazing what a difference it makes. That first one sure does sound like my uncle's diesel tractor

05-11-2008	#9 (permalink)
Lizard SLK World Member Join Date: Dec 2006 Vehicle: SLK55 Posts: 37 Country: Thanks: 0 Thanked 3 Times in 1 Post	Thanks to DSB again for the original posting that inspired me to test out my own vehicle. I do like the x-pipes sounds better, but must admit that I miss the start-up sounds of the straight pipes a bit. But it's a very good trade off for a more refined sound.

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