exhaust rattle on cross member and rear sway

harman.khinda · 07-11-2012, 07:00 PM

I have Megan Test Pipes connected to CNT CBE. I think/heard that the test pipes might be a bit longer than stock pushed the cbe exhaust back and down a bit and now the H-pipe is sitting on the crossmember. Also as the stock cats had the support brace which the megan tp's lack they probably held up the h-pipe. So far I've been able to prevent the rear sway exhaust rattle by using high temp tape and transmission line. I'm currently using transmission line to isolate the h-pipe rattle but it melts and loses resiliency after a while even when wrapped in exhaust wrap.

If I have flat washers that I could use to space the cross member lower but will this adversely affect anything? I'm not lowered and don't have to worry about scraping. I have jacked up the exhaust and layed exhaust header wrap between the cross-member and h-pipe and still got a rattle and vibration. I'm hoping there is some sort of thermal cushioning or rubber I can squish in there and will be able to hold upto the heat. I can't find anything. I'm open to any ideas and suggestions. Thanks!

AlphaSnacks · 07-16-2012, 10:44 AM

You should be able to adjust the exhaust using the hangers around the cross-member area to raise the clearance a bit. You should have about 1/3-1/2 of an inch of clearance.

Post pictures of what it looks like down there right now.

Mike · 07-16-2012, 11:33 AM

I use washers on mine. used them on my 350 also. no adverse effects.

07-11-2012, 07:00 PM	#1 (permalink)
harman.khinda Enthusiast Member Join Date: Feb 2012 Location: Red Bluff, CA Posts: 378 Drives: 10 Nissan 370 PG 7AT Rep Power: 6723	exhaust rattle on cross member and rear sway I have Megan Test Pipes connected to CNT CBE. I think/heard that the test pipes might be a bit longer than stock pushed the cbe exhaust back and down a bit and now the H-pipe is sitting on the crossmember. Also as the stock cats had the support brace which the megan tp's lack they probably held up the h-pipe. So far I've been able to prevent the rear sway exhaust rattle by using high temp tape and transmission line. I'm currently using transmission line to isolate the h-pipe rattle but it melts and loses resiliency after a while even when wrapped in exhaust wrap. If I have flat washers that I could use to space the cross member lower but will this adversely affect anything? I'm not lowered and don't have to worry about scraping. I have jacked up the exhaust and layed exhaust header wrap between the cross-member and h-pipe and still got a rattle and vibration. I'm hoping there is some sort of thermal cushioning or rubber I can squish in there and will be able to hold upto the heat. I can't find anything. I'm open to any ideas and suggestions. Thanks!

07-16-2012, 11:33 AM	#3 (permalink)
Mike The370Z.com Sponsor Join Date: Jun 2009 Location: Loganville, GA Posts: 5,944 Drives: 370z Rep Power: 2186	I use washers on mine. used them on my 350 also. no adverse effects. __________________ NISSAN: 75 280Z / 86 300ZX GLL /87 Sentra SE / 03 350Z / 23 Z Porsche: 93 968 / 23 Macan GTS / 93 968

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07-16-2012, 10:44 AM	#2 (permalink)
AlphaSnacks A True Z Fanatic Join Date: Jan 2010 Location: Windermere, FL Posts: 1,618 Drives: '13 XKR-S, '10 370Z Rep Power: 18	You should be able to adjust the exhaust using the hangers around the cross-member area to raise the clearance a bit. You should have about 1/3-1/2 of an inch of clearance. Post pictures of what it looks like down there right now.