Tweet
What is the stock exhaust size on my 95 formula firebird? Anyone know? ive heard 2.5 inches but just wanted to check and see
-
-
2.5 sounds about right
i would like to know about a 1996 3.8ls
probally 2 and 1/4sigpic
1996 Base Model
+2 cylinder mod -
i thought the main pipe was 3in then it split to 2.5Comment
-
The stock Intermediate pipe ID for V8 Cars is 2.75". I know this because Both my `94 Formula and my `98 Formula had 2.75" I pipes.
I'm not sure on the V6 pipe size but I would gess it's around 2.5".CraigSemi Retired Street Racer2012 Lava Red Mustang GT 5.0 MT82GONE BUT NOT FORGOTEN
sigpic
NBM `98 Formula M6 HdTp
1 of 1 Build Date 3/12/98
"Political correctness is a doctrine, fostered by a delusional, illogical, liberal minority, and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a turd by the clean end."
"For you who believe all you read, I caution you - you are daily being brainwashed for profit by extremely effective psychology with very little regard to factual accuracy. In short, you're at the mercy of the world's greatest bullshit artists with the morals of a stray tomcat."
- Smokey YunickComment
-
if you can get to your car and want to make sure...this is howi figured out what mine was.
get a measuring tape, like the kind women use to measure their waist. haha. wrap it around the exhaust, this gives you your circumference (C). for reference, (pi)=3.14 d=diameter of pipe(what you're looking to find)...then use C=(pi)d...d=C/(pi)...and there ya go, that's the diameter of your pipe! and that concludes today's algebra lesson folks. hope this helps2000 Trans Am l 1967 Firebird
sigpic
Comment
-
unfortunatly the car is tucked away in storage. i was hoping to order my cutout this winter. Guess Ill have to wait till spring.Comment
-
Comment
-
they go by the outside diameter of exhaust pipe. from the y-pipe back to the muffler is 3" OD. that would be the size you need for ordering the cut-outs. my car is a '94 formula, and we had it on the hoist right before first snow flew.Comment
-
On a V8 the Y Pipe dumps out into the cat using a 3" pipe. The cat drops it down to a 2.75" and it stays that size until the muffler.
On a V6 I'm not sure about the size of the Y pipe but the intermediate pipe is 2.25".
I have a v8 and my brother has a v6. It helps.
1994 Z28 M6
K&N Ram Air, Descreened MAF, Trick Flow Elbow, Lunati Cam (206@ .469/ 215@ .489), Pacesetter Longtubes, Magnaflow Catback, ORY, Polished Heads, 4:10s, BFGoodrich GFORCE, Short Shifter, SPEC Stg 3 Clutch, MSD Opti :no:Comment
Comment