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FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER (4)
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FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER

FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER

Produce the exclusive big Flowmaster® sound outside your truck, a quiet, less-resonant tone inside Minimize back pressure for more power than original equipment More choices! 15 different con

Average Customer Rating: 5 out of 5 5 out of 5 (4 Reviews)
4 of 4 (100%) customers would recommend this product to a friend.

Customer Questions & Answers: 16 Questions |  13 Answers
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Product Details

Customer Reviews for FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER

Overall Rating: 5 out of 5 5 out of 5
great purchase, February 14, 2009
By 98DakotaV8 from North Carolina

"The sound is great as well as the price. Slight difference in gas mileage (1 maybe 2)."

How often do you shop at JC Whitney.com?: Multiple Times a Year
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Review 2 for FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER

Overall Rating: 5 out of 5 5 out of 5
91 Ranger w/302, April 1, 2008
By DangerRanger from Pella, IA
Appearance: 5 out of 5 5 out of 5
Ease of Use/Installation: 5 out of 5 5 out of 5
Quality/Construction: 5 out of 5 5 out of 5

Pros: They always attract attention and they where loud with the 4-bbl
Cons: I have the older ones and they drone at 1000-2000 rpm anything above they scream

"I could not listen to the radio, but I had it going from the headers to the 40's then straight out, right behind the cab, so i told everybody that I installed ditch burners"

How often do you shop at JC Whitney.com?: Multiple Times a Year
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Review 3 for FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER

Overall Rating: 5 out of 5 5 out of 5
Sounds Great, August 14, 2007
By CustomerofJCW from USA
Appearance: 5 out of 5 5 out of 5
Ease of Use/Installation: 5 out of 5 5 out of 5
Quality/Construction: 5 out of 5 5 out of 5

"5 stars, Installed this on a 93 Nissan Pathfinder. Its sounds Great, milage has improved, and much better throttle response. Thanks"

How often do you shop at JC Whitney.com?: Multiple Times a Year
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Review 4 for FLOWMASTER® DELTA FLOW™ 40 SERIES™ PERFORMANCE MUFFLER

Overall Rating: 5 out of 5 5 out of 5
Brian, July 8, 2006
By Brian from Salisbury, MD
Appearance: 5 out of 5 5 out of 5
Ease of Use/Installation: 5 out of 5 5 out of 5
Quality/Construction: 5 out of 5 5 out of 5

"Has a deep rumble - not extremly loud - just right! Very easy to install. I installed it on a Chevy Express Van and it's not too loud inside the vehicle."

How often do you shop at JC Whitney.com?: Once a Year
3 of 5 people found this review helpful.
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