Downpipe

Well I have been looking at downpipes and need opinions on what to get. I want it to have a cat and I hear the flex pipe is beneficial, what do you all suggest? One guy has a r/t dp but it doesnt have the flex in it.. thanks!

well since you have the gtp i sugest going with a 3" but it also depends on the mods you are lookking to go with in the future, if your staying mostly stock a 2.5 should be ok but if you plan on doing some upgrades even in the future go with a 3"

zzp 3" bolt on DP with high flow cat.

she dont NEED the high flow cat i would say it only depends if your state has inspection otherwise get the offroad pipe with a 02 sim

so if a get one with no flex in it would it break eventually? is it louder without the cat?

ya it is but it depends if ur state requires a cat. as for the flex i assume it would but then again i have heard some flex breaking.

Jorgs actually responded with the best answer in a thread!!
Go with what he said

/thread

YEAAA !

does anyone know anything about the random technology downpipes? with high flow cat.... they dont have the flex...thats the only thing picture wise that i see.

who cares, get a zzp DP and youre good to go

do you plan on getting headers if so just get them and have a TOG DP welded in i wish i did

I wish i go headers too, a DP and a PLOG are just as much as decent headers. but welding blows.

the cost is the same but the benifits arent just look up ur options on zzperforman.com

Do *not* get a pipe without a cat.

Whether your state does emissions testing or not, any motor vehicle (post '72 iirc) is require by *federal law* to have a catalytic converter.

You know what happens if you get caught without one? $1000 federal fine.

And that fine may very well have gone up since the last time I checked.

3in to high flow

they could be like the stock DP, and there is a flex at the neck, do you have any pictures, i think you should be ok but thats just me

RT is twice the cost of ZZPs.

This is not true. It is going to be my life goal to expel this myth. Do NOT use a 2.5" DP for any application (GT or GTP) stock or modded.

Have you ever used an RT? Don't say "who cares" if you don't know if it is better or worse, since you have no experience with it.

That being said, there are all sorts of DP options out there. I had an old Jimmy-C downpipe (anyone know if he still makes them?), and then had a local member make one for me. ZZP seems to have pretty decent ones for the price, I know that Hogan Performance makes one, Wbodystore has one too. There are tons of options.

ZZP does offer lots of options and while the 304 stainless is great for longevity it does increase the cost. The Magnaflow down pipe is bolt in replacement at a good price and give the same benefits of hi-flow cat and u-bend delete.

I'm with Zerg on the cat issue. Even if your state doesnt have inspection laws the lack of a cat is federal offense so why risk it? Hi-flow cats will deliver all the sound and power you can dish out.
I'm also thinking you want to keep a downpipe with flex section. The rocking movement of your FWD engine almost demands it, without flex section I would think you would eventually get cracks or gasket leaks.

The Magnaflow 23405 canbe found online in several places for about $185 while ZZ'z base price is $89 by the time you add a cat and bolt on options is about the same price.

well the guy is selling an R/T for 125 he didnt have it on his car very long, not sure why but he said he decided to go with wbody one. I hear if it doesnt have the flex it will crack..I would hate to get it then it crack... any advice would be nice... thanks

hmmm, id keep looking on the Club GP ones until you find one with the flex if youre worried about it, or just get headers and screw it.

http://www.clubgp.com/newforum/tm.asp?m=4829456&p=1&tmode=1&smode=1

what does gutted cat mean isnt that the same as no cat?

yes just get a high flow cat like everyone is telling u and if you got a good shop near buy you could just buy the cat and they could weld everything and remove the ubend but i still say the easiest way is a zzp 3" DP

Pretty much, but you can just have a shop weld your stock cat on there.

JimmyC D/P's were the best, but unfortunately I do not believe he makes them anymore. He was shipped out to the UE sand box at one time and no longer had the time to put into building them.
I know he is no longer in the GP community. He sold his GP a long time ago and shortly after that his wife sold hers too.
He was an awesome vendor. I drove down to San Antonio when I bought mine and he welded it in for free when I bought it. I tried to pay him $40 for his work, but he gave me back $20 and told me to use it for gas to get back to Austin.
I've had my JimmyC D/P for quite some time and have had zero issues with it.

Gutted = no internals. If someone looked under your car to see if you have a cat, they would see one.

Back in the 80's a popular thing to do was to shove a broom stick in the cat to get all that crap out, then once the cat was "empty", simply reinstall.

Well I got the downpipe on, I got the catted zzp bolt up.. While doing that they noticed a hole in resinator so got that fixed too. 102.00 dollars for the resinator and install of both. Not bad at all. My car had some sound prior to all this but now its SILENT and I don't like that. LOL. I want a little sound deep tho not raspy. I heard magnaflow 225 or 250 is a good one if I don't want it over the top... is that true? Thanks

Should of just kept the Res. out if you wanted a bit of sound.

The DP wont make it much louded unless you have no cat. but you have the HF cat.