X Pipe
06-04-2018, 06:19 PM
#1
Burning Brakes
Thread Starter
X Pipe
Is the ZR1 x pipe the same as the Z06? 2 & a 3/4 with a single "X"?
The following users liked this post:
MustOBeenYellow2015Z (06-04-2018)
06-04-2018, 09:25 PM
#3
Safety Car
Member Since: Jan 2012
Location: Cin City
Posts: 4,885
Received 481 Likes
on
317 Posts
St. Jude Donor '14
https://weaponxmotorsports.com/produ...nt=37647884305
The following users liked this post:
MustOBeenYellow2015Z (06-05-2018)
06-05-2018, 12:10 AM
#4
Burning Brakes
Is the X-pipe a cat delete too? IE: Not CA smog legal?
The following users liked this post:
MustOBeenYellow2015Z (06-05-2018)
06-06-2018, 06:02 PM
#6
Burning Brakes
-Yes, CA does visual inspection. The thoroughness of that visual inspection probably varies, but I know they look for anything non-stock under the hood (compared to pics on their computer screen) and they know how many cats to look for from the same database. Further: Wouldn't removing these cats affect emissions? These aren't like the US-only header cats on my Z4 MC's S54 that only exist because of non-EU cold start emissions testing. I would think that downstream cats would make the tailpipe sniffer fail.
06-06-2018, 06:12 PM
#7
Safety Car
Theta has posted that removing the X pipe with its cats (putting in a replacement one without cats) will not result in a sniffer test fail.
What Theta has posted, has always been 100% in my book!
What Theta has posted, has always been 100% in my book!
Last edited by elegant; 06-06-2018 at 06:13 PM.
The following users liked this post:
MustOBeenYellow2015Z (06-06-2018)
06-06-2018, 11:28 PM
#8
Melting Slicks
Member Since: May 2006
Location: Westchester County New York
Posts: 2,934
Received 258 Likes
on
171 Posts
-Yes, CA does visual inspection. The thoroughness of that visual inspection probably varies, but I know they look for anything non-stock under the hood (compared to pics on their computer screen) and they know how many cats to look for from the same database. Further: Wouldn't removing these cats affect emissions? These aren't like the US-only header cats on my Z4 MC's S54 that only exist because of non-EU cold start emissions testing. I would think that downstream cats would make the tailpipe sniffer fail.
Sucks on the visual inspection...
06-07-2018, 03:33 AM
#9
Burning Brakes
Is the replacement X-pipe substantially re-designed from GM's or is its benefit primarily that the cats are gone?
IE: If someone were to bore through the cats...
IE: If someone were to bore through the cats...
06-07-2018, 04:29 AM
#10
Melting Slicks
Member Since: May 2006
Location: Westchester County New York
Posts: 2,934
Received 258 Likes
on
171 Posts
Now that I think about it though...the X Pipe is located under a plate and I don’t think a visual inspection would reveal any change unless this were taken off...so you might not have an issue with the aftermarket X Pipe...
Last edited by Nyvetteguy007; 06-07-2018 at 04:32 AM.
06-07-2018, 03:05 PM
#12
Burning Brakes
I am also curious how much louder the car is with the secondary cats deleted. Anyone take before/after vids?
06-17-2018, 09:36 PM
#15
Racer
I read somewhere on the forum that the cats were hollowed out and it didn't sound good because the hollowed out chamber of the cats resonates alot.
06-17-2018, 09:42 PM
#16
Le Mans Master
Member Since: Jul 2007
Location: Arkansas
Posts: 5,006
Received 1,335 Likes
on
775 Posts
St. Jude Donor '09-'10-'11-'12-'13-'14-'15-'16-'17,'22-'23
Not true at all, at least on the previous model ZR1, it sounded great. No resonance but I don't know about air flow/turbulence.
Last edited by BearZ06; 06-17-2018 at 11:11 PM.