Off road h pipes

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Oct 12, 2007 | 10:22 PM

Dwight

Thread Starter

Joined: Oct 2007

Posts: 1

From:

Off road h pipes

Got stock 97 cobra, only flowmasters and k&n filter. Looking to install off road h pipe. I know my engine light will probably come on, but will it hurt performance without a new tune

Oct 12, 2007 | 10:26 PM

defconfire

5th Gear Member

Joined: Mar 2007

Posts: 3,791

From: Cary/Charlotte, NC

RE: Off road h pipes

I always thought that was just a myth. But I never did installed one, I wouldnt know

Oct 12, 2007 | 10:34 PM

mvr

6th Gear Member

Joined: Feb 2005

Posts: 5,361

From: Vegas

RE: Off road h pipes

changing out midpipe shouldnt require a tune. it wouldnt be a bad idea to get a a/f check but 99.9% of us dont.

Oct 12, 2007 | 11:34 PM

MU71L4710N

5th Gear Member

Joined: Aug 2007

Posts: 3,189

From:

RE: Off road h pipes

one way to find out if it does :-P.

get some mil eliminators, or you can solder resistors into the stock harness if you want theres a how to somewhere (google will have one)

Oct 13, 2007 | 02:23 AM

2000GT4.6

6th Gear Member

Joined: Jan 2004

Posts: 12,575

From: United States

RE: Off road h pipes

Quote:

ORIGINAL: Dwight

Got stock 97 cobra, only flowmasters and k&n filter. Looking to install off road h pipe. I know my engine light will probably come on, but will it hurt performance without a new tune

its not going to hurt performance.

No reason to get a a/f check on a n/a car with a minimal mod like that.

Oct 13, 2007 | 03:12 PM

aking287

2nd Gear Member

Joined: Sep 2005

Posts: 168

From:

RE: Off road h pipes

I believe if it throws the O2 sensor code it will hurt performance.

Oct 13, 2007 | 04:02 PM

GTnateGT

1st Gear Member

Joined: Oct 2007

Posts: 60

From: Clovis, CA

RE: Off road h pipes

It doesnt hurt performance. But it may disrupt your air fuel mix and make you run lean but you wont even notice. Just get some MIL eliminators and the code dissapears.

Oct 13, 2007 | 06:31 PM

aking287

2nd Gear Member

Joined: Sep 2005

Posts: 168

From:

RE: Off road h pipes

I stand corrected. The rear O2 sensor code doesn't change a/f ratio therefore it doesn't hurt performance. You'll just have to look at the light unless you get eliminators or a tune.