bmxerboi221

Today some A hole ran me off the road and while coming back onto the road my exhaust hit the groud and also my o2 sensor wire got ripped apart. When the exhaust (y pipe) hit it caused a really big exhaust leak where the passenger header bolts to the head. Also the o2 sensor i had was from a 3.8 v6 firebird. It is a 4 wire heated o2 that i wired up. So how come it feels like i have so much more power?

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jensen73110

"really big exhaust leak" kinda acts as an open cutout. Odds are you do have more power.

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mtwlkn122

lol...yup you got yourself a permanent cutout...prolly sounds bad @$$ at idle dont it?...as for having more power if your cat was clogged/old or you have stock exhaust you will REALLY notice a difference between the two...


...i have an 89 caprice with the 305 in it....long story short my exhaust came off right before the cat....WOW it was alot faster and sounded so much better....now that i fixed it its back to a slow quiet granny car lol

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91 Firebird-75,XXX-3.1L

Mods so far:
Custom air intake, K&N Filter, high-flow Magnaflow cat, 2.5 cat-back Super Turbo Dynomax dual out the rear, alpine head unit, custom box and amp rack, two 12in DB3 subs and two profile AP1000M amps, Kentik HC800 power cell, memphis front and back speakers, Compustar alarm system, Gtech PRO SS meter, Autometer A-Pillar guages, 16in GTA style rims w/ 245-50r16 tires, Directional treads in front, straights out back.

Upcoming Mods:
Poly Bushings, LCA's, Panhard bar, SFC's, Wonderbar, Eibach Pro Kit, Koni Yellows, Front end rebuild kit, LS1 swap w/ 6 speed man. tranny, Aluminum Driveshaft, Limited Slip rear end, Shift kit, Window Tint, Grant Wheel, Autometer in dash gauges, Upgrade subs and do all componet speakers, New Paint will be the last thing to do.

Stats:
0-60 time: 8.04
1/4 mile time: 16.00 @ 87.1mph
Decibels: 137.4

http://www.thirdgen.org/techboard/al...p?albumid=1245

"DODGE the father, RAM the daughter!"

Gumby

to get more power easy on these things you just open up each end.
An engine is just an air pump.

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86 Pontiac Firebird
[68 Firebird hoodscoops, custom notchback,
custom rear mounted tach, inverted wing.]
http://www.thirdgen.org/techboard/v6...-all-over.html
I love my new notch-back. See link for newer pics and above mods.

bmxerboi221

Well I have the pacesetter headers and 98 formula catback, but there is still a piece of the stock exhaust right before the cat

DemonKnight

remove that stock part, you'll thank your self ^_^

bmxerboi221

Just wanted to double check, it is ok to use a 3.8 o2 sensor right?

Gumby

that makes no difference, and O2 is an O2 cept for how many wires it has n may wire up.

not gonna add performace or take away.

save loot next time and get a univerals 2-3-4 wire as needed.
about $20 cheaper.

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86 Pontiac Firebird
[68 Firebird hoodscoops, custom notchback,
custom rear mounted tach, inverted wing.]
http://www.thirdgen.org/techboard/v6...-all-over.html
I love my new notch-back. See link for newer pics and above mods.