Helix or Crawford High flow cats??
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Performance Nissan
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Joined: Dec 2004
Posts: 6,151
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From: Pasadena/Bay Area
Helix are no longer offered
we've run the Ultimate Racing ones on our own car for 3 years now.....perfect fit, finish and sound
http://z1auto.com/prodmore.asp?model...ust&prodid=580
we've run the Ultimate Racing ones on our own car for 3 years now.....perfect fit, finish and sound
http://z1auto.com/prodmore.asp?model...ust&prodid=580
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Joined: Apr 2006
Posts: 190
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From: Dallas
+1 on the Ultimate Racing. I bought a set from Z1 and they're great. Crawfords and many others have way too many reports of cracking.
Here's my post on my install.
https://my350z.com/forum/intake-exhaust/200485-ultimate-racing-hfc-install-and-oem-comparison.html
Here's my post on my install.
https://my350z.com/forum/intake-exhaust/200485-ultimate-racing-hfc-install-and-oem-comparison.html
Originally Posted by m1james@bellsou
+1 on the Ultimate Racing. I bought a set from Z1 and they're great. Crawfords and many others have way too many reports of cracking.
Here's my post on my install.
https://my350z.com/forum/showthread.php?t=200485
Here's my post on my install.
https://my350z.com/forum/showthread.php?t=200485
Lou
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