View Poll Results: What downpipe you think is better?
2.5" (two point five inch)
5
9.62%
3.0" (three inch)
47
90.38%
Voters: 52. You may not vote on this poll
Which Downpipe is better in your opinion
Registered User
iTrader: (7)
Joined: Dec 2002
Posts: 10,029
From: Sacramento CA
Car Info: 02 Impreza WRX sedan
3" (over 2.5") on any current Subaru factory turbo FTW! 
Back pressure does not increase torque or power. If it does, the engine needs tuning.
--
0==WW==0
"…axles of evil…" - george w. bush
Back pressure does not increase torque or power. If it does, the engine needs tuning.
--
0==WW==0
"…axles of evil…" - george w. bush
Registered User
iTrader: (2)
Joined: Sep 2003
Posts: 107
From: San Jose
Car Info: 2004 WRX Wagon PSM
I voted for 3" because you have more options. There aren't very many 2.5" DP's to choose from, and if you ever want to upgrade to a big turbo, you'll need more flow. If you plan on sticking with the stock turbo, 2.5" provides plenty of flow.
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