change the downpipe require a retune

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Sep 12, 2012 | 11:13 AM

carlos8

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From: Puerto Rico

change the downpipe require a retune

i'm going to swap my old 2.5" downpipe for a new 3" one. Do i need to retune my car? It's posible to test the new one with the current setup?

thanks in advance
carlos

Sep 12, 2012 | 05:18 PM

0mtber

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From: Tampa, FL

Re: change the downpipe require a retune

You need to monitor the vehicle's air fuel ratios with a wideband to determine if the air fuel ratios are on target. If they are you should be good to go.