AP Exhaust X5500 3" intermediate pipe
#1
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Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
AP Exhaust X5500 3" intermediate pipe
Trying to source a 3" intermediate pipe for my 91' bird but not having any luck throught the usual suppliers. I came across the AP Exhaust X5500 3" mandrel bent intermediate pipe, has anyone had any experience with making these work under our Thirdgens?
*EDIT
I can see that the connection to the cat is different, I believe it's more for a 4th gen.
*EDIT
I can see that the connection to the cat is different, I believe it's more for a 4th gen.
#2
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Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: AP Exhaust X5500 3" intermediate pipe
Looks like the correct connection for 91.5 -92 N10 cats
#3
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Re: AP Exhaust X5500 3" intermediate pipe
The catch with most of the replacement intermediate pipes is they neck down to 2.5" where they enter the muffler. The OD of the stock I-pipe is 2.75 or 3", but the muffler inlet is 2.5. To get a true 3" you have to go performance aftermarket. Or weld up a bunch of adapters.
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: AP Exhaust X5500 3" intermediate pipe
It will work with a little fabbing at the cat end.
#5
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Car: 1991 BandittII Firebird
Engine: 5.7 HSR
Transmission: 700R4
Axle/Gears: 3.27 9 bolt
Re: AP Exhaust X5500 3" intermediate pipe
It seems the only option other than aftermarket or 2.5 intermediate pipes is the Walker 46669.
#6
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Re: AP Exhaust X5500 3" intermediate pipe
My exhaust shop ordered a 3" mandrel bent for 4th gen, fairy certain it was from AP. He just cut cat flange off. Used a 3" inlet magnaflow, mid pipe was 3" all the way back, but again not sure on exact part number. I will be over there in the morning getting my truck looked at, will try and remember to ask for the part number.
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91banditt2 (01-23-2020)
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