Sloraxe

Looked at a few online stores at all the down pipes available. Think I'm going to order one soon. Do these pipes come with everything necessary for installation? I'm leaning twords the HKS Mildsteel from what I have read seems to be the best bang for buck. Also If anyone has any info, horror stores, good stories about ordering and installing a down pipe let me know.

My first FD mod, I fear I have started down the dark path.

rx7eaven

Very good choice. This will help the engine and turbo life, decrease underhood temp, as well as give you some extra hp. I got the m2 stainless steal. It is a nice 3" piece that caused no trouble in installation.

Sloraxe

does the HKS down pipe plug into the stock muffler? or am I going to need to buy the HKS muffler (think its the HKS Hiper carbon Muffler I was looking at). And IF i get the muffler too will/does it do anything performance wise?

RavenRx7

I just had my Pettit 3' inch downpipe. I love it. I can see a big difference on low end torque and the turbo's whistle louder. It ran 294.00 from the RX7 store -- took 3 dayz... good luck

the_glass_man

iTrader: (2)

All Downpipes should connect right to the main cat pipe. I would spend the extra money to get the SS version or get your mild steel one jet coated to prevent corroison and bring down under hood temps. You do not need to buy an aftermarked exaust with a downpipe. Make sure that you have enough fuel to compensate for the mod if you have done other mods and are still using the stock ecu.

Sloraxe

No other mods on the car, would I face any fuel problems with just adding the down pipe and exhaust?

The only other Mods I'm looking at doing is installing an aluminum radiator before summer. And some TBD reliability mods.

the_glass_man

iTrader: (2)

With just a downpipe and a cat-back (with a stock cat) you should be fine. If you add an intake or highflow you would be pushing it. Depending on what you want to do to your car down the road you should look into a M2, Pettit, or Power FC ECU. The downpipe is a must to replace the precats, also the radiator is a very good idea. Did you upgrade or remove the AST yet? Also look into boost and water temp gauge if you don't have any yet.

rx7eaven

Doing a cat back exhaust and downpipe should be fine with the stock ecu. The cat back is not NEEDED but it is a wise addition. It is also very smart to get some reliability mods. I would go with aluminum radiator, aluminum AST, boost gauge, and water temp gauge. This will help you out a lot. Happy motoring!

rx7eaven

Dang it Dave! You just beat me in posting that.

Thanks again for the hi flo cat!

Sloraxe

Was looking for some price's on the Cat Back, and Aluminum AST. Any information on where to read up on them?