ok i have my 93, it is stock. i dont know a whole lot but ive been told i should think about doing the exhaust first. I am looking for some advice on what kind of exhaust i should run on it and if anybody knows some shops in the area that i can check on? thanks

 

well get a new cat-back and dp... for the mp wait till you get a boost controller or else u'll end up having boost creeps

think about what your goal is before purchasing an new exhaust line... are you looking for something quiet? loud? something lightweight?

and it all depends on what your wallet can feed !!!

 

A boost controller will not help with boost creep. Best bet is to keep you stock cat.

 

why do you think you should do exhaust first. its loud and isnt as beneficial as a radiator can be. esp for these weathers.

 

to control boost creep you have two options:
1. port wastegate
2. restriction somewhere in the exhaust.

 

y not just buy apexi PFC. ?

 

well i have no problem with it being a little loud, thats fine and money isnt too much of an issue, i dont plan on doing too much to it just some mild upgrades nothing too crazy. i just want to know where to start and make sure i do it right.

 

Because not everyone has $900 for a pfc+commander and $500 for a tune. Or maybe its the fact i am a poor college student.

 

The exhaust line is the last place most people will start. ESP, in cali. This is because A.) you get molested by the police. B.) its hot here and FDs run real hot.

You should replace your AST and radiator first.

 

alright well anyone got some suggestions on makers? and im looking for some local shops that know the car.

 

You should listen to him he knows what he is talking about.

Reliability Mods first. I had my FD for 3 years before i got an exhaust.

 

Mike, if the car is completely stock, then there are some other things that you may want to look at before exhaust. The first that I'd recommend would be to check out the reliability mods in the FAQ, or one of the threads devoted to that. Start off by checking to see if the pre-cat has been replaced with a downpipe. If not, that would be the first thing to do.

I don't think you have to replace the AST (I just did myself however), or the radiator (although I'm thinking about a replacement). I'd definitely replace radiator hoses if they are original.

 

it still has the pre-cat, as far as the downpipe what would you guys recommend and what parts sites are the most reliable.

 

An aftermarket downpipe replaces the precat. Any DP will work, but some of them like the one i have are designed for RHD cars. Just look for straight piping. A lot of reputable vendors on this forum carry it.

I noticed you also live in NorCal. Trust me, you will want a radiator. I hate having to be careful with my car so that it doesn't get too hot. The radiator will be my next serious mod.

Randy

 

if money isn't the issue I would go for the reliability mods first then go for power mods. Start off with larger radiator, oil cooler, boost/oil pressure/Air Fuel Ratio gauges, AST, silicone hose job, etc. Then go for the power upgrade mods such as down pipe, mid pipe, exhaust, intake, etc. Most importantly if you go over 3 power mods you need to purchase a Power FC commander to remap your ECU. Running your car lean with power mods cause a higher chance of your motor go Boom! hope that helps out for now, just my .02

 

Mike,

As is so often the case, folks here (including myself) have told you everything they think you should know and not bothered to answer your initial question.

For exhaust, at least a cat-back, I really, REALLY, like my Racing Beat Dual Tip. The sound is good, but not too loud. I've read that it provides a marginal performance boost, and the dual tip looks cool. Not sure where you can find it, but if money isn't a problem, then I'd go for it.

Any decent muffler shop can install it for you once you find it. It is a bolt-on, so you could do it yourself if you wanted, but a muffler shop would not charge much for the labor.

 

I would definitely install a downpipe, as the precat is a source of high heat in the engine bay. For a cat back, I would recommend the RB dual tip. It has a nice look and sound, and it blends into the stock body nicely. Both can be purchased from www.rx7store.net, as well as a few other places. The cat back is $499, and downpipe around $175.

Some other things to consider:

Boost and water temp gauges

Metal ast

FC thermoswitch mod (more info here: https://www.rx7club.com/3rd-generation-specific-1993-2002-16/its-official-do-not-buy-miata-thermoswitch-until-you-read-397156/ )

Aluminum radiator

 

id go with the apexi N1 catback if you can afford it, thats what we threw on my friends fd and its working pretty well... im not sure what he has for the dp (i have a feeling its the generic 3" one from rx7store.net) but i think his main cat is stock.

as far as doing it for your first mod though, i dont know.... when we modded his car this last christmas we did the:
cold air intake
exhaust
intercooler
radiator
pfc + commander
braided oil metering lines
silicon hoses
pineapple street port
all at once.. .still havnt gotten a tune for that pfc but its not being driven much.

 

Each has his own taste of course, but I listened to those video clips that were linked in another exhaust thread and was struck by how much that N1 exhaust at idle sounded like my old 6 hp Evenrude outboard motor.

It was my understanding that the PFC base mod map should handle all that, up to the street port. That is the one that would worry me some. Am I wrong (yet again)?

 

https://www.rx7club.com/showthread.p...ust+comparison

 

+1 to the downpipe, that will actually help get some of the heat out of the engine. I dont think a catback would cause any realy increase in engine temps, but i do agree a larger radiator should be coming soon if you plan on modding the car.

I have a Kyo (i think thats the name) catback. it was a really good price, 3" stainless steel all the way back,straight through design, it's not loud at all, and im running a midpipe. I was really surprised at how quiet it was. No droning on the highway either. I'll try to get some sound clips of it one of these days, i also have a DBL sound reader i'll see how loud it actually is.

 

Hey Randy, I have an Auto as well and have replaced my Radiator with an Aftermarket unit that is all aluminum and about twice the size of the oem unit. They're not easy to find for the auto's (partially because part of the transmission cooler runs through the bottom of it) so I thought I'd throw some info your way. I had mine built by AWRacing (Andy Woodford Racing) I think they are in Cali. It was somewhere in the neighborhood of 400-$500. I have been very happy with it, with no overheating issues at all and I have several mods. It gets pretty hot here in Arkansas and I haven't seen the needle ever go above standard operating temps. Good luck!