Northern7

iTrader: (1)

I'm looking to get a new downpipe and was wondering about fitment issues? What would anybody suggest for brands names or differences between companies? Has there been any changes over the years in terms of improvements of designs? Anyone who is happy or dissappointed with there downpipes? I think that just about covers my questions.

Thanks for the help

RevZempoe

Search can help alot!! (I only say that cuz i asked the same question)

But go with an Ebay one. You may have to modify a little if at all but there's no difference really between which one you should use. They all do the same thing.

rynberg

If you want to be assured of a good quality pipe with good fitment, stick with the pipes from rx7.com, Pettit Racing, or Gotham Racing. Many people have tried the cheaper pipes out there, some with success, others without. Do a search for more info.

mquraish

iTrader: (1)

When I was looking, many people told me to beware of downpipe's that are inexpensive and have a thin flange on the engine side that make's fitment a real problem.

I am going with a Pettit Racing dp that I have hear is made well, and fits well.

turbodrx7 has one for half the cost of a new one-I was going to buy it, but he couldn't get it to me in time. you might want to contact him if you end up wanting one of those.

Northern7

iTrader: (1)

I hear the search button lol, on 56k some times it's worth the heat!

alberto_mg

i have an ebay dp on my car and the fitment wasn't very good. the holes did not line up with the cat so i couldn't install it myself. i had to take it to my mechanic who had to drill out the holes. add the labor cost to the cost of the dp

you can find some name brand ones used if you like or buy one that you know will fit.

MakoRacing

iTrader: (12)

I have a used HKS dp for sale

CantGoStraight

I have a polished stainless pipe that just came off my car. i bought one with o2 sensor bung and EGT bung for EGT gauge sensor. Let me know if your interested. Thick flanges and no fitment problems. Jack

kosoku

I installed 'Tsudo' stainless downpipe from ebay recently and the fitment was horrible. midpipe came with the dp. even dp+midpipe combo fitment was horrible. I had to pull the stock exhaust forward to bolt it up.
I'll sell you the dp+mp combo for $50 if you want. it's almost like brand new.

Jed_only_red_RX7

Good to hear all these comments as i was about to buy one from ebay !!

POS7

HKS fits perfectly. It also does not require you to remove the stock studs, which tend to be locked in place (as mine were). The only problem is there might be flow problems associated with the curvature of the pipe. IMO though HP losses would be minimal from the "squashed" pipe

GoodfellaFD3S

iTrader: (213)

lots of those ebay parts are junk (stone, megan, obx, yippycaiyaa). in most cases you get what you pay for .

riptor

so stick with name brand...dps?

Northern7

iTrader: (1)

What about Bonez? I heard their cats are good, what about their downpipes? Anybody?

rx7dv8

YES....pretty easy decision. Spend your $$$ once....dp installs arent fun.

jeff p

get the HKS pipe and have it heat coated. the fit is great and it will reduce the under hood temps.

GoodfellaFD3S

iTrader: (213)

It also has a crimp in the piping because it is meant for a japanese FD. I recommend going with a d/p that doesnt have that restriction.

POS7

imo, the restriction is somewhat negligible. It sorta depends on whether you can back out the stock studs or not without breaking em. If the studs are locked in there tight, I'd use the HKS. If you can get em out, go with the petit or something. Of course taking the studs out just to see if they'll come out is somewhat silly too, but might be your best bet in deciding which DP to purchase.

I happen to have a Petit and a HKS. I'm using the HKS because I couldn't get the studs off without breaking them.

EMPi71

I used a Pettit on mine. The studs on mine came off easily. Hardest part was getting the precat out then lining the new one up w/ that gasket. But the Pettit fits perfectly.

Northern7

iTrader: (1)

Where do you get you parts heat coated?

GoodfellaFD3S

iTrader: (213)

There are shops out there that offer ceramic (heat) and powder coating as well as polishing. If you give the guys at www.GothamRacing.com a call, we have a good source for quality work. Of course, you are in canada, so someplace more local to you would be ideal.

SteveF

Just wanted to say I have the gotham on mine, fit perfectly even with a nice thick and ugly thermal wrap on it!

Steve

cthomp21

I have a Gotham Racing downpipe. Fitment was very good. I had to dremel one of the welds to make the bolt head fit flush. For some reason, the bolts they sent me were the wrong pitch, so I had to get some grade 10.9 metric bolts from the auto parts store. Not really a big deal, but a minor inconvenience having to go get parts when I thought all of the stuff I needed for the install was there.

Northern7

iTrader: (1)

What about the quailty of materials, ie thickness of different dp's? anybody?

Northern7

iTrader: (1)

What about the quailty of materials, ie thickness of different dp's? anybody?