Helix dp vs. Greddy evo catback?

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Nov 10, 2004 | 06:30 PM

#11 (permalink)

Turbo C-Ya

yep yep

Joined: Dec 2001

Posts: 795

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Yea what?

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Nov 10, 2004 | 06:54 PM

#12 (permalink)

mantra1

Shaggin' Wagon IV

Joined: Jan 2004

Posts: 1,390

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Quote:

Originally posted by 813_05_STi
too many ppl get mod happy and get a turbo back. yes there good but if your not going to port the turbo, or upgrade it dont bother with a d/p. If you get a aftermarket d/p your going to creep with a stock turbo. not safe and you will not get any warranty with one. I have a turbo back, and had the turbo ported for $75. well worth the $$

He is correct, somewhat. Sti owners have had problems with boost creep when going with a full TBE. Hence, porting the turbo has helped. However, WRX owners do not suffer these problems with the little TD04. If you want to wake up the WRX, you'll need an up-pipe/downpipe combo.

Nov 12, 2004 | 07:06 AM

#13 (permalink)

Bill

Livin' in Seattle

Joined: Nov 2000

Posts: 2,813

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Is this the stainless steel version of the EVO or the aluminized steel with the corrosion coating? I used to run an EVO on my Civic back in the day and that was by far one of the heaviest exhausts I've ever seen.