2018 Granatolli exhaust cutout install Thread.

[VibraSHO]

I will be installing the Granatelli exhaust cutouts on my 2018 non-pp today.


These are the parts that were sent times 2. I like the switch idea if I could route them to one switch and I’d install this next to the traction control switch.

I ordered the remote adapter as well, I will hook this to the 2 remaining slots on my garage door opener (home link) if the above method doesn’t work out.

I will look for a spot and update.



Need about 10-11 inches of original pipe size. Good time to delete the cat? I could fit it between the cat and muffler with some modification. Anything before will be cutting into the PPE catted DPs. Thoughts??

Sent from my iPhone using Tapatalk

 

[luigisho]

Is that the knock off brand for Granatelli?

 

[VibraSHO]

Is that the knock off brand for Granatelli?

Damn spell correct. Now I can’t change the post title


Sent from my iPhone using Tapatalk

 

[VibraSHO]

Figured I only need about 8 inches, not the 11 that I thought initially. Going to go between cat and muffler.


Sent from my iPhone using Tapatalk

 

[luigisho]

Damn spell correct. Now I can’t change the post title


Sent from my iPhone using Tapatalk

Just being a douche. Slow day today.

 

[VibraSHO]

Just being a douche. Slow day today.

Been there man. I get it.


Sent from my iPhone using Tapatalk

 

[VibraSHO]

Here is the picture of the cuts. Used a reciprocating saw to make the cuts, angle grinder to clean it up. I cut a bit short to make sure the cutout will fit.


Sent from my iPhone using Tapatalk

 

[VibraSHO]

Driver’s side installed. Used a lightweight rubber mallet. Started with the muffler side, pushed in as close to the muffler as possible. Then I pushed the muffler and cat apart and slid it on. I used the rubber mallet on the ****** that is pictured to lightly tap it into place.

There is about an eighth inch gap as shown, I cut too short. This gap is on each side, however, the clamp will cover this up nicely.

Here is the passenger side cat. You can see how I had to use the grinder to clean up (not finished yet). I needed to grind at a slight angle to make a funnel shaped so that the pieces fit together properly. I had to do this on both the cat and muffler side.


Sent from my iPhone using Tapatalk

 

[CCXVI]

I used the homelink to work mine

 

[VibraSHO]

I used the homelink to work mine

I watched that! I love it.


Sent from my iPhone using Tapatalk

 

[VibraSHO]

Note: don’t connect one before the other. Now I can’t get the passenger side in because the drivers side won’t come out. Connect both exhaust sides first, then work the cat side together.

Stupid mistake on my part.


Sent from my iPhone using Tapatalk

 

[VibraSHO]

So I ended up dropping the cat. I recommend this as it takes 5 minutes and will make the instal easier. After the cuts of course it it actually drops down. It just swings down once you disconnect from the resonators.


Here is a picture of both attached to the muffler side.


Sent from my iPhone using Tapatalk

 

[VibraSHO]

Pretty easy from the last post to complete hookup. Here are the pics of it installed minus the door and wiring. I’ll finish that tomorrow.





Sent from my iPhone using Tapatalk

 

[76FoMoCo]

Looking great. Not much for power gains but fun. Why not put them facing the other way?
Seems like you might have them mixed up side to side and 180*?

 

[CCXVI]

Looking great. Not much for power gains but fun. Why not put them facing the other way?
Seems like you might have them mixed up side to side and 180*?

Surprisingly it did make a little low end bump. One of the clay hills I used to drive up regularly I noticed it had less trouble with them open.

As fun as the dumps were I realized I had them open more often than not, and that's how I went with the driver door exit. I'm really thinking about another SHO in a bit and going with the vacuum actuated dumps this time.

 

[VibraSHO]

Looking great. Not much for power gains but fun. Why not put them facing the other way?
Seems like you might have them mixed up side to side and 180*?

I figured it would be better for airflow, it has a straight path from the cat to the muffler. If I swapped them, it thought it may dump the majority of exhaust into the muffler, instead of into the cutout. My thought process was path of least resistance. I may have over thought that though.


Sent from my iPhone using Tapatalk

 

[VibraSHO]

Surprisingly it did make a little low end bump. One of the clay hills I used to drive up regularly I noticed it had less trouble with them open.

As fun as the dumps were I realized I had them open more often than not, and that's how I went with the driver door exit. I'm really thinking about another SHO in a bit and going with the vacuum actuated dumps this time.

I could see myself driving with them open the majority of the time. Certainly been a fun mod to install and mess with. I’ll be back at it today with the wiring.


Sent from my iPhone using Tapatalk

 

[CCXVI]

Tons of drone with it exiting under the car though. Great at anything except cruising. Idle/parking lots it sounds great, and flat out it's not really noticable, but on the highway or something it's pretty bad obviously.

 

[VibraSHO]

Alright here I’m installing the gaskets to the exhaust ******. I ran the bolts front to rear.


So the bolts screw into the “3-bolt exhaust ******” (pictured). The supplied nuts were not used. If I put the nuts on as well the clamp with tip would not fit.

This is the clamp and tip I’m referring to.

I ended up using the lock washer at the beginning of the bolt between the bolt face and ******. Used lock-tight on all three bolts to be safe.

Drivers side complete.


Both sides in. Wiring is tricky for the passenger side. I’m working on wiring through the heat shield to connect the two on the drivers side.

Sent from my iPhone using Tapatalk

 

[VibraSHO]

Tons of drone with it exiting under the car though. Great at anything except cruising. Idle/parking lots it sounds great, and flat out it's not really noticable, but on the highway or something it's pretty bad obviously.

I took it out last night prior to installing the remainder. The drone is wicked when I was cruising. I can’t even imagine how it would be on the highway at full open. I agree, it sounds really good at an idle.


Sent from my iPhone using Tapatalk