dave30250

Greetings Everybody !

I hope by the help of you guys i will be able to find my mustang 19995 5.0 5 speed like before. Every winter i put her in a garage... Last summer she we're performing like a brand new one ! And this year when i take her out of the garage she seems have lost her torque or hp... you know when you know you r car and you know what he can give you but you feel a little something not present like normally... so i take the car to the garage to see what is the problem and they told me that was my catalityc converter... So i have bought a mac h pipe 2.5 inchs and flowmaster delta flow 40 series. Now she is a little bit better but i don't have same feeling now when i'm driving i feel something again. She don't give me everything. Now is it possible that when i have change the exhaust i have fixed the problem but now i don't have enough back pressure? i have no cats now and 2.5 inchs all the way from headers (origin headers). Is it a sensor (oxygen sensor maf sensor) or somethign else that can be in cause. I have change plugs wire plugs and distributor and rotor and air filter AND gaz filter... This car have always been treat like a baby i don't understand why she is not like before i don't fell all the HP and torque like before...! I think this is my back pressure the problem do you think ? and if this is ... a mac throtle body and cold air intake (k&n) will fix the problem?

Help me did someone saw this before !!??

Big Block Ford

Did you get rid of the cats or did you fit new ones.

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71 429SCJ Mustang