Midpipe Question with a Whipple Upgrade

[ITL Cobra]

I am going to finally get underway with the install of my Whipple and the supporting mods that need to go with it after a year of going back and forth between a Whipple and just a pulley.

I currently have a Borla stinger cat back and I was wondering if a new midpipe is needed or will the stock one suffice?

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[Tom]

I am going to finally get underway with the install of my Whipple and the supporting mods that need to go with it after a year of going back and forth between a Whipple and just a pulley.

I currently have a Borla stinger cat back and I was wondering if a new midpipe is needed or will the stock one suffice?

1st off... Congrats on going the Whipple direction. You'll love it!


I would definitely go with a different midpipe.

With that being said... and the fact you are running a Stinger catback... May I suggest a freer flowing "catted" H or X pipe.

 

[Flatliner]

I ran the stock midpipe for quite some time, so if the question is, do you have to with a whipple, the answer is no. Can you do it some time later and see a little improvement, the answer is yes.

 

[IZZy]

I ran the stock midpipe for quite some time, so if the question is, do you have to with a whipple, the answer is no. Can you do it some time later and see a little improvement, the answer is yes.

but he would need a different tune right?

 

[ITL Cobra]

So a catted is recommended over a OR? As mentioned above will I need to re-tune if I decided to do the install later??

 

[SONICobra]

So a catted is recommended over a OR? As mentioned above will I need to re-tune if I decided to do the install later??

personal prefrence, if youre a real man you would enjoy an o/r pipe j/k some guys dont like a real loud exhaust, for me the louder the better. i had an o/r bassani x-pipe with my original stingers and LOVED LOVED LOVED the way it sounded and was only pulled over once for it, but just given a warning :headbang:

if you do go with an o/r pipe you just need to have the check engine light taken off in your tune unless you have obd2 bypass connectors.

 

[Tom]

So a catted is recommended over a OR? As mentioned above will I need to re-tune if I decided to do the install later??

The tune question I will leave to the experts, but, the reason(s) I said freer flowing "catted" midpipe...

1) Better flow with the Whipple v.s. stock midpipe.

2) Being that you have a stock midpipe on there now with the Stingers... An o/r midpipe might be a little overkill in the decibel department for you, but, if you like it loud... An o/r midpipe is the way to go.

 

[SONICobra]

if you get a bassani x-pipe you can get them with slip on/off cats... that way you can have it either way

 

[Flatliner]

The rears 02s can be shut off in a tune or you can purchasethe MIL eliminators. When you have your car tuned ask for the same tune, one with them off and one with them on so when you make the change it won't be a big deal. There has been a big push by EPA to stop the ability to purcahse and do this. To be honest with you, exhausts flow pretty goood, my suggestion is get a good catted x pipe with ability to remove and move on. I have the Bassaani one...

 

[ITL Cobra]

Do you find yourself running with or without the cats more?

 

[SONICobra]

the only reason i would ever see for running cats is to quiet the exhaust because you can still "pass" emissions without them as long as you dont have a check engine light, so again it goes back to personal preference

 

[Flatliner]

Do you find yourself running with or without the cats more?

A few of us here hit the track all the time... and I belive all with the exception of one run cats (aftermarket x/h), that being said, to answer your question, the boxes with the bypass pipes are sitting in the corner of my garage taking up space and never moved.

If you are expecting a HUGE difference in power from an aftermarket catted/ non catted... don't.

 

[ITLLOWNU]

your only looking at about 8-10 hp diff. at best so the real question is how loud do you want it?

if you plan on doing a header upgrade then i would hold off on the mid pipe untill then.

 

[vadorsnake04]

your only looking at about 8-10 hp diff. at best so the real question is how loud do you want it?

if you plan on doing a header upgrade then i would hold off on the mid pipe untill then.

i agree with this, i wish i would have waited instead of have to buy so many midpipes!

 

[sshocker96]

What about the smell? When I first got my car, I would get headaches, my clothes reaked, & my girl got nauseous. I know a few people with modulars & it seems that they dont have that issue. The other 2 pushrod cars I've been in also smelled.