FS: RS*R Exmag Downpipe (Bellmouth w/ 80mm piping)
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Posts: 1,285
From: Bay Area
Car Info: 02 WRX
FS: RS*R Exmag Downpipe (Bellmouth w/ 80mm piping)
I'm selling my RS*R Exmag Downpipe to go with something catted.
It is a JDM-length catless downpipe with a full bellmouth mated to 80mm (3.15") piping. Bolts right up to all RS-R and JDM-spec catbacks without the need for the restricting connector piece. Fits all 02+ WRX and STi's. Looking to get $250 obo. I'm located in Davis for pickup, but will deliver to San Francisco or San Jose also.
Exhaust flow is very important in turbocharged cars. The more restrictive your exhaust is, the less horsepower your car will have. RS*R Downpipes are designed to extract maximum performance in a safe, long lasting design. Significant power and torque gains are realized with the installation of a RS*R Downpipe. Tests have shown gains up to 50HP when you use a RS*R Downpipe with GT2 exhaust system.
It is a JDM-length catless downpipe with a full bellmouth mated to 80mm (3.15") piping. Bolts right up to all RS-R and JDM-spec catbacks without the need for the restricting connector piece. Fits all 02+ WRX and STi's. Looking to get $250 obo. I'm located in Davis for pickup, but will deliver to San Francisco or San Jose also.
Exhaust flow is very important in turbocharged cars. The more restrictive your exhaust is, the less horsepower your car will have. RS*R Downpipes are designed to extract maximum performance in a safe, long lasting design. Significant power and torque gains are realized with the installation of a RS*R Downpipe. Tests have shown gains up to 50HP when you use a RS*R Downpipe with GT2 exhaust system.
Thread Starter
Registered User
iTrader: (11)
Joined: Sep 2005
Posts: 1,285
From: Bay Area
Car Info: 02 WRX
I'm pretty sure it will fit an 05 STi because the OEM downpipe from that car fits the 02+ WRX/STi's also. No problems with it. If you want you can test it/try it out - I'll take it back if you don't like it 
You do need either an RS-R or JDM-spec catback, or you can have the piping shortened on a USDM-spec catback.
You do need either an RS-R or JDM-spec catback, or you can have the piping shortened on a USDM-spec catback.
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