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*AzCivic* · 04-17-2002, 12:23 PM

Go for the 4-2-1 they're best for the street. Don't expect a big gain from either though, its just a link in the intake/header/exhaust chain which together will give you about 20HP plus or minus a few.

04-17-2002, 12:23 PM	#4
AzCivic Moderator Join Date: Feb 2002 Location: Az Age: 43 Posts: 3,804	Go for the 4-2-1 they're best for the street. Don't expect a big gain from either though, its just a link in the intake/header/exhaust chain which together will give you about 20HP plus or minus a few.