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Ford Explorer Community - Maintenance - Modifications - Performance Upgrades - Problem Solving - Off-Road - Street
Explorer Forum Covers the Explorer ST, Explorer Sport, Explorer Sport Trac, Lincoln Aviator, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Ford Aerostar
What kind of High flow Cat would u guys recommend.....or would it be good to hollow them out?....I don't really care about emmissions until inspection time come?
on my friend's F-150 the muffler shop hollowed his front cat and then hooked a hi-flo on back. It sounds and performs great. Me on the other hand went with a bolt on hi-flo cat(front and rear together) and it cost me $240 something at http://www.truckperformance.com . My explorer exhales better now with the hi-flo cat and flowmaster exhaust. For some, I heard it did not do great.
Hollowing it out makes driving at 55- 65 a real pain in the... I think it is cause there is no low end torque in the rpm range. I also had borla headers and a borla cat back. http://www.randomtechnology.com makes good hi-flow converters. I sent them an e-mail and this is what i got back.
The direct fit high flow replacement incorporates 2 converters (just like the original). It's a bolt in-- no welding or modifications required and sells for $325.