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      10-03-2014, 11:33 PM   #1
karbonphiber
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quick review of Zima motorsports downpipes

I ordered a set of Zima motorsports catless downpipes through VCM Auto Inc. and had them installed this evening.

Overall, I'm quite happy with the quality and design of the product as well as the prompt service from VCM. The welds are cleaned throughout the inside of the pipe, and are good and robust throughout, and they are significantly more lighter and less bulky than the stock units.

The design and manufacturing of the pipes made the installation relatively easy. Although I did not install them myself, the installer took about 2hours from start to finish which is not bad considering this was their first set of downpipes they had installed for an M4.

On the upper down pipe, the downstream O2 Bung had been welded 90 degrees to that of the OEM position. This made reinstalling the the sensor easier than removing it and the end connection sections were maintained round such that the stock gaskets slipped perfectly on. The only minor complaint I have about the design is that when installed, the lower downpipe fits extremely close to the subframe with just barely a few millimeters of clearance. To mitigate the potential of the downpipe hitting the subframe, I would recommend to Zima that at end where the pipe connects to the turbo should be shortened by fractions of an inch.

Other than that, the sound is noticeably deeper, and very nice and loud when opening up the throttle. The crackles and pops are more pronounced as well as the spooling sound of the turbos.

What I was really impressed with was how much more pull I was getting with them installed. These are going to get me into some serious trouble!

On to some pics:
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      10-04-2014, 12:31 AM   #2
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That looks nice. How much were they?
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      10-04-2014, 11:55 PM   #3
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Quote:
Originally Posted by Boostin FD
That looks nice. How much were they?
$1000 I am thinking

https://zimamotorsports.com/product/...ipe-f8x-m3-m4/
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      10-05-2014, 07:49 AM   #4
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So this what Zima has been up to .
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      10-05-2014, 10:56 AM   #5
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Nice but who installed them?
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      10-05-2014, 01:53 PM   #6
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Quote:
Originally Posted by farbmw
Nice but who installed them?
Plug plug 😉
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      10-05-2014, 02:00 PM   #7
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Awesome!!
thank you for the review.
We carry Zimma products too by the way
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      10-05-2014, 02:19 PM   #8
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Quote:
Originally Posted by farbmw View Post
Nice but who installed them?
I got them installed at Columbus Automotive Services in Mississauga. They did a really good job, and the guys there know what they are doing. Highly recommend them. I'll be getting them to install my exhaust if and when I get it
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      10-05-2014, 03:38 PM   #9
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Quote:
Originally Posted by karbonphiber View Post
I got them installed at Columbus Automotive Services in Mississauga. They did a really good job, and the guys there know what they are doing. Highly recommend them. I'll be getting them to install my exhaust if and when I get it
Yup they know what they are doing!

MPE is next ah!!
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      10-05-2014, 04:34 PM   #10
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Quote:
Originally Posted by farbmw View Post
Nice but who installed them?
The shop came from a recommendation from a good guy I know
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      10-05-2014, 04:56 PM   #11
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Thanks for sharing. Very close to the subframe indeed. Have you experienced the down pipe hitting the subframe under spirited driving or otherwise?
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      10-05-2014, 05:34 PM   #12
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Quote:
Originally Posted by Clark_Kent View Post
Thanks for sharing. Very close to the subframe indeed. Have you experienced the down pipe hitting the subframe under spirited driving or otherwise?
I don't feel or hear it knocking against the subframe but I do feel more vibration through the floor board. I'm going to look underneath when I have time later this week to see if it's been making any contact
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      10-06-2014, 10:22 AM   #13
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Thanks for the review, enjoy the DP's in a safe manner!

As for as it being close to the subframe we have about 1,200 miles on our car and no vibration. We have been on the street and track with them and have had zero issues.
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      10-09-2014, 01:34 PM   #14
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Nice
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      10-09-2014, 07:33 PM   #15
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Any videos of the sound?
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      10-10-2014, 11:26 PM   #16
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Quote:
Originally Posted by tooch View Post
Any videos of the sound?
I'll try and take some this weekend.
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      10-27-2014, 09:06 AM   #17
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Any update on subframe contact? Notice any increased vibration through the floor board?

Any CEL yet?

Thinking of moving on a set, thanks!

Last edited by BCMgunner; 10-27-2014 at 10:55 AM..
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      10-27-2014, 10:23 AM   #18
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Quote:
Originally Posted by BCMgunner View Post
Any update on subframe contact? Notice any increased Anat through the floor board?

Any CEL yet?

Thinking of moving on a set, thanks!

Installed a set just about the same time as OP. The pipes fit and finish is top notch. they fit close to the sub fame no rubbing for us. The car is a daily driver hwy, city and a dyno with no cel. The down pipes with stock exhaust and valves unplug in the open stage wake the car up big time!


Last edited by Ging; 10-27-2014 at 10:34 AM..
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      10-27-2014, 10:48 AM   #19
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Quote:
Originally Posted by BCMgunner View Post
Any update on subframe contact? Notice any increased Anat through the floor board?

Any CEL yet?

Thinking of moving on a set, thanks!
There was noticeable vibration but it's fixed. no CEL as of 1000kms of driving with them.

I'd have to attribute the vibration to how the lower downpipe was designed/manufactured. Maybe i got a bad one but like I said, the lower downpipe fits maybe a 1/4" too low.
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      10-27-2014, 11:11 AM   #20
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Thanks for the replies!
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      10-27-2014, 11:22 AM   #21
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With a bit more attention to detail on install this rubbing would not have occurred.


Quote:
Originally Posted by karbonphiber View Post
There was noticeable vibration but it's fixed. no CEL as of 1000kms of driving with them.

I'd have to attribute the vibration to how the lower downpipe was designed/manufactured. Maybe i got a bad one but like I said, the lower downpipe fits maybe a 1/4" too low.
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      10-27-2014, 04:05 PM   #22
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Quote:
Originally Posted by VCP View Post
With a bit more attention to detail on install this rubbing would not have occurred.
The shop that installed it is really good... Don't get me wrong though, with the dp's installed the car sounds sick, pulls like a champ, no cel, no vibration, great price point...I'm a happy camper!
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