Question about test pipes or HFC for a newbie

andre12031948 · 12-14-2013, 04:09 PM

I don't do many mods but I may replace my cats with test pipes this spring. I will have it done in the same place that tunes my car. So after having them install the test pipes, I'll have them put the car on the dyno & tune it.

I BELIEVE? that mod will make my car run leaner. Running lean is not such a good thing for the engine. So the tune will make my car run safer, better & they at the same time will make sure the car has no lights or develops any inspection issues later on.

The dyno pull will show where & how the power curve looks & we can adjust/choose the shifting & redline points.

So while I'm there for the test pipes installation..............

kfull · 12-14-2013, 04:56 PM

With a custom tune like uprev how anal are inspection places about that? I've avoided getting a 3rd bolt on + tune mainly because of this.

Chuck33079 · 12-14-2013, 05:07 PM

Quote:

Originally Posted by kfull

With a custom tune like uprev how anal are inspection places about that? I've avoided getting a 3rd bolt on + tune mainly because of this.

Depends on the state. Some states pass you as long as there are no active CELs. You're in Mass, so you're ******.

Be Careful with UpRev in Mass

kfull · 12-14-2013, 05:11 PM

Quote:

Originally Posted by Chuck33079

Depends on the state. Some states pass you as long as there are no active CELs. You're in Mass, so you're ******.

Be Careful with UpRev in Mass

yea i've read through that thread before. I wonder if I just had hfc's + my fi exhuast + K&N drop ins w/o a tune. I'm sure most inspection places don't care about or even notice hfc's.

12-14-2013, 04:09 PM	#1 (permalink)
andre12031948 Banned Join Date: Feb 2011 Location: monticello new york 127 Posts: 1,095 Drives: 08 350z black 6m/t Rep Power: 0	this is just me & I'm ok with others doing their own thing I don't do many mods but I may replace my cats with test pipes this spring. I will have it done in the same place that tunes my car. So after having them install the test pipes, I'll have them put the car on the dyno & tune it. I BELIEVE? that mod will make my car run leaner. Running lean is not such a good thing for the engine. So the tune will make my car run safer, better & they at the same time will make sure the car has no lights or develops any inspection issues later on. The dyno pull will show where & how the power curve looks & we can adjust/choose the shifting & redline points. So while I'm there for the test pipes installation.............. Last edited by andre12031948; 12-14-2013 at 04:49 PM.

12-14-2013, 04:56 PM	#2 (permalink)
kfull Track Member Join Date: Mar 2012 Location: Massachusetts Posts: 909 Drives: A lot Rep Power: 16	With a custom tune like uprev how anal are inspection places about that? I've avoided getting a 3rd bolt on + tune mainly because of this. __________________ 2012 GM 6MT sports package \| FI non res cf exhaust \| K&N Drop Ins \| Viper 3303 security system w/ tilt sensor \| GTR start button \| 35% rear 45% side window tint \| Michelin PSS

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