4" tapered to 3" Downpipe

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LegacyT
Fourth Gear
Posts: 1220
Joined: Mon Oct 21, 2002 9:53 pm
Location: Ottawa, Ontario, Canada, Now Sioux Lookout

4" tapered to 3" Downpipe

Post by LegacyT »

Like in the title will one of these downpipes hurt spool time for the turbo? Its a bellmouthed downpipe.

Thanks,
Mark
1991 Turbo Sedan, Aspen White 5MT, Sold RIP
1994 Turbo Sedan, Crimson Pearl 5MT, from British Columbia-no rust!
rsstiboy
Second Gear
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Joined: Sun Apr 20, 2003 3:45 am
Location: Brisbane, Australia
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Post by rsstiboy »

short answer no, its exactly what i have, except mine is 4 1/2" at turbo back, you'll be happy with it, boost will come in smoother, you'll think the car is slower because the boost comes in earlier, but it'll be much quicker.
MY02 B4 Liberty, 2 1/2" off the primary with splitter, 3" off the secondary, 3" the rest of the way, completely stainless, k&n filter, ECUtek 3, 500HP walbro, 173kw@all4
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