Flowmaster 40 Series

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02-12-2001, 03:08 PM

BuddyLeeX

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Location: Keller, TX

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Car: 06 Toyota Tundra SR5

Flowmaster 40 Series

I recently bought a Flowmaster 40 Series muffler for my dual exhaust system on my 87 Pontiact Firebird formula 305 4bbl LG4 carburated engine, and I was wondering how much horsepower did I jsut add to my car?

BTW - How do you guys get your signature to work after your post with your cars info, I cant get mine to work

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02-12-2001, 03:28 PM

BuddyLeeX

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Car: 06 Toyota Tundra SR5

Opps, never read they bottom of the posting block

Oh and btw, I have like a single in and dual out muffler, I dont have "true" dual exhaust.

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87 FireBird Formula
305 carburated Engine
K&N Filter
Flowmaster 40 Series
2 1/2 inch tips
Stock Dual Exhaust
-----Need Upgrades-----
--Give suggestions plz--

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02-12-2001, 11:27 PM

302GTkiller

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so thats how the sig works...

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1990 RS, Code23 medium maui blue metallic, craptacular 305, but soon that white 5.0 lx at school will get a good beating from a 355 RS...hehehe...