i cant find any info on this, but is the american thunder muffler an 80 series or a 40 series flowmaster? i tried searching but no luck

 

It's a 40 series.

 

no, it is definitaly a crossflow 80 series muffler

 

Flowmaster american thunder mufflers are 40 series I got it off there web site!

 

The muffler that comes with the flowmaster american thunder series catback is an 80 series. I didn't have to look on a website, I have the catback. I am 100% sure on this! There is no such thing as a crossflow 40 series.

 

cool, i was starting to get a head ache of thinkin what it was, do u recommend it? i got a magnaflow and it sounds weak all camaro's ive owned they came with magnaflows dont like how it sounds dont really like the hot rod sound

 

I love it. I bought it because it is a chambered design and produces an outstanding sound, and because the tips are beautiful!

 

the muffler shop around my house they said will hook me up with the muffler, the 3.5" pipe, and the z-28 muffler tips for 260 bucks

 

For thirdgen Camaro/Firebirds, the Flowmaster American Thunder is FOR SURE an 80 Series Crossflow. I should know, I have one, and its nice and loud, I love it!

 

Can I chime in as well? It's an 80 series crossflow. I have one on my 95Z28.

 

Yeah definetly an 80 series muffler. I have the american thunder system on my car.

 

what about horsepower wise? does it give out good numbers?

 

probably fine if youre running stock or mildly modded. if you are pushing any kind of horsepower flowmasters are inadequate. they are pretty restrictive compared to other brands of mufflers like hooker, dynomax and magnaflow. i just tore mine off yesterday, didn't like the drone at cruising speed either.

 

:lala:

 

magnaflow sucks, the passenger side outlet sound more agressive then the one on the driver side, my friend has a flowmaster and i like how it sounds, he gots the dual cats, i also got the dual cats but i took them off cause im getting catco and running single cat, will 2 cats vs. 1 cat make the exhaust sound differently?

 

hey i have Magnaflows and i think they sound great, I dont think dual cats vs 1 will make any big sound diff, But it makes more HP tho

 

you need a better sound system then... lol

 

I donno if anybody said this yet but its an 80 series, i know cuz I also got the catback

 

so basically when ordering an "American Thunder" exhaust sys. its just the 80 series flowmaster the pipe from the cat and the dual outlets?

 

Its the intermidiate pipe (pipe behind the cat(s) to the muffler, then dual outlets. Simple as that

 

cool, maybe that will help out my catco cats that are on the way, but yeah thanks for all the help

 

how big are the dual pipes coming out? do they make a 3.5" version or is it just 3" and how are the pipes, straight out or do they slant down stock style as well as how far do they stick out from bumper?

 

a guy i used to work with put it on his 94 Z28 and i'm about 90% sure that the tailpipes were 2.5in and were like our stock style. idunno if they have an option for anything different

 

Mine came with a 3" Inlet and Dual 3" outlets.

 

the outlets r 3in....r your tailpipes 3 in?

 

american thunder here too


my enitre system is 3 inch, besides the custom y-pipe

i also love the tips they throw on there for ya too

 

looks good, so they dont slant downwards. BTW for all you 80 series fans the kit #17233 is the one for the 3" system - 3"inlet/dual 3"outlet to 14" (i believe) stainless steel tips which are slash cut and exit straight out the back. If im incorrect on any of this then let me know cuz i myself am still lookin for info

 

I've also got the American Thunder system on my car. It's got a 3" mandrel bent I-pipe with an 80 series crossflow muffler with 3" inlet and dual 3" outlets with the mandrel bent "tailpipes" with polished stainless tips the same as carlover01. Overall I'm quite happy with the system, and I also love the way the tips look And I think you're right on with that part number. I've got that system with a 3" Magnaflow high flow cat and it seems pretty decent, not that I'm an exhaust expert lol



-Paul

 

Y not throw mine in there

 

wow thats just beautiful. Makes me wanna put next years college tuition aside to redo my entire exhaust. It looks like they stick out just enough past the bumper...which is great. Now to find someone thatll put 3.5" tips on mine...

 

Go look at some 3" tips theyre big enough imo but what ever floats ur boat.

 

So when ordering the exahust system u get the tips also or is that another option u have to purchase?

 

the tips come with it, no extra charge

 

yea, i have the american thunder cat back with the chrome 3" tips and i def. would not want to go any bigger on the tips. I thought they looked too big when I first put them on... they've grown on me some, but I absolutely would not wanna go bigger.

 

Flowmaster 17233 - 3" intermediate pipe, dual 3" outlet
Flowmaster 17234 - 3" intermediate pipe, dual 2.5" outlet

 

Oooops typed it wrong!

Flowmaster 17233 - 3" intermediate pipe, dual 3" outlet
Flowmaster 17234 - 2.5" intermediate pipe, dual 3" outlet

 

The both have the same dual 3 inch stainless outlets, the difference being 17234 has a smaller I pipe for hooking up to the smaller low output 2 1/4 inch cat. Get the 17233 if you plan on real performance with a 3 inch cat and headers.

 

Is the factory cat 2.25 or 2.5 inch?

 

This is ABSOLUTELY wrong. The 17234 has a 3in. intermediate pipe that has an adapter at the cat end from 3in. down to the 2.5in. stock cat. This is why they call it a 3in.cat back. I have the American Thunder cat back and there’s no way I would have bought the 17234 if it was 2.5in. pipe. Here it is at Summit Racing. It does have the 80 series muffler.

http://www.summitracing.com/parts/flo-17234
There is a type o concerning the tips. They are not rolled.

 

It’s the same dimensions as this

= http://www.summitracing.com/parts/mpe-93456
I have one.
Also if you have not read this thread yet you should. I covers a lot of ground concerning the American Thunder.

https://www.thirdgen.org/forums/exha...3-17234-a.html

 

OK, I just got off the phone with Summit Racing and the Flowmaster American Thunder cat back #17234 is offering a $ 55.00 rebate and free shipping until 8/15/13.
(You just mail them a copy of your receipt and they will give you back $55.00)
He also said the cat back dose not have rolled tips.
There you go !