ive got a stock 94 twin turbo...i wanted to get a new down and mid pipe, but i have heard that a mid pipe will make my car loud as shell...and thats what i wanna stay away from, cops aroudn here are asses....i need some suggestions...

 

Make your car loud?

Never heard that, rather, worse...make your car boost spike/creep (I forget which).

Having a MP and a DP with a Catback is too manipulative to the exhaust airflow and will mess with your turbo's. The only way to have all 3 and be safe is some sort of ECU & Boost controller.

A DP & CB is the safer bet.

 

i've got a boost controller on the way..alreadsy ordered it...do you recommend a down pipe? mid pipe, or cat?? which ones...i was the most power i can get...but i also want to stay half way quiet

 

oh ok..i didnt see that bottom part

 

This belongs in the 3rd gen section, not here.

 

I have a Dp, CB and midpipe and my car istn't loud at all...Cops drive right by me and they don't even notice...

 

oh...btw you wont get much out of the DP, MP and CB if you don't install an intake...but then you must get an upgraded ECU...and upgrade the fuel system...and...etc...

 

A boost controller wont stop boost creep, you'll need to port your wastegate to stop that. But just order a dp/mp combo from rx7store or somewhere and youll be ok, just make sure to replace all the studs and gaskets while your under there.

 

If the pipes are mild steel, get them ceramic coated. Then thermal wrap the DP.
If the DP is SS, still wrap it.

This will help reduce under hood air temps.

 

Don't get a midpipe with stock ECU. It will likely result in a blown motor. Get a downpipe and a catback or intake to start until you get a new ECU.

 

the fact is the car can run at 10 psi with a intake and full exhaust. the a/f ratios are on wade's site some cars will creep some do not, you will have to set the controller be cautious. a full exhaust WILL be loud no way around it. dp, high flow cat and cat back will be enviro friendly and relativly quiet.