MustangWorks.com : Ford Forums - View Single Post - Does your exhaust go BLUB, BLUB, BLUB when you let up on the gas?

Rick 91GT · 05-31-2001, 07:22 AM

Some times it is caused by a lack of back pressure and what you hear is the cold air being sucked back into the hot exhaust flow. Long tubes headers even make this more prone, as they scavage further down in the exhaust system.

Doesn't everyone with this problem have Off Road pipes? If you have hi-flow cats or cats in general it is less likely to happen.

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05-31-2001, 07:22 AM	#6
Rick 91GT Procharged! Join Date: May 1999 Location: Hanover, PA Posts: 1,539	Some times it is caused by a lack of back pressure and what you hear is the cold air being sucked back into the hot exhaust flow. Long tubes headers even make this more prone, as they scavage further down in the exhaust system. Doesn't everyone with this problem have Off Road pipes? If you have hi-flow cats or cats in general it is less likely to happen. ------------------ Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon!