Belanger Exhaust Installed by Monday

[Sniper]

I wanted to say thanks to JonB at PartsRack, Lou at Belanger, and Jeff, Jethro, and Fred at Woodhouse!
Been a long decision making process to decide what exhaust I actually wanted to go with but I ended up deciding to go with headers heat coated black, hi flo cats, 2 1/2”, black tips, and race mufflers all from Belanger.
Now that I went this far, I’m leaning now towards the Arrow PCM also but that 10 year/100,000 mile warranty is screaming at me to not do it.

DE6DDE39-A696-4880-80B4-E09987D7B765.jpg
940B7F8E-1F32-4D72-AC85-26AB85519328.jpg

[srtoad4]

Nice! Why only 2.5" and not 3"?

[Sniper]

Was informed the 2 1/2” makes the car a little quicker.
3” sounds a little better.
So I went with the 2 1/2”.

[ChargerMan426]

Was informed the 2 1/2” makes the car a little quicker.
3” sounds a little better.
So I went with the 2 1/2”.

People say that but when you dyno 2.5 and 3 back to back the 3 will have more power....at least in the V8 world. Engine Masters did an episode on it. Actually, they went as far to show that you'd be better off running a larger header pipe and dinging it as needed vs running a smaller size tube.

[Gen5snake]

People say that but when you dyno 2.5 and 3 back to back the 3 will have more power....at least in the V8 world. Engine Masters did an episode on it. Actually, they went as far to show that you'd be better off running a larger header pipe and dinging it as needed vs running a smaller size tube.

It's all about the area under the torque & hp curves. I'm sure the 3" produced better peak numbers, but the 2.5" produced more area under the curves....over all more power across the rpm range.

[Sniper]

You’d have to talk to Belanger about that. He said Viper is quicker with the 2 1/2”.
Also, I know for a fact more peak HP doesn’t mean the car is going to be quicker.
I had a Gen I Viper which made 402 RWHP and pulled hard on 97 Gen 2 Viper with 454 RWHP. My Gen I pulled Gen 2s with full exhaust which didn’t make them too happy back in the day.

[Sniper]

Well, won’t be installed by today.
The instructions show a hole in the exhaust for the o2 sensor but there’s not a hole.
Is this the way it is supposed to be or should it have a hole for the o2 sensor predrilled?

[SLP]

A hole...you mean a bung? You should have a bung on your y-pipe. It looks like you do unless I'm seeing a shadow.
Belanger.jpg

[Steve M]

O2 sensor bungs should have been installed before they were coated. To install properly (if not already there), you'll have to strip the coating off the spot where the bung will go. The bung will get welded in, and then you can figure out how you want to touch up the coating.

[Sniper]

So the o2 sensors go in the header?

[Sniper]

This is what shop said...

Do you have a link to the exhaust you bought. They either boxed it wrong or sent you the wrong kit. It is missing wholes in the exhaust behind the cats for the o2 sensors. Paperwork in box shows it has holes, even has o2 sensor extensions for them, but pipe does not have hole.*

[Steve M]

Pre-cat O2 sensors will go in the collectors on each side (where SLP pointed above). Post cat O2 sensors may not have been included if you are running an Arrow PCM. Are you?

[Sniper]

No, I’m not.

[Steve M]

In that case, there should have been O2 sensor bungs installed after the cats as well. The cats will be in the sills.

Detailed pics of everything you were sent would be helpful.

[SLP]

Sounds like you have the upstream sensor bungs (important ones) but not the downstream ones that measure cat efficiency. The downstream sensors are often deleted by people who modify their viper. Would recommend doing a search on here for more information and/or calling belanger to discuss.

[Sniper]

Straight from Belanger:

The O2 sensor bungs are in the tail pipes , not right behind the cat anymore, he probably just didn’t look at the two black coated tail pipes to see that the bungs are there

Just have him look in the tail pipe, right in the center of the outside of the bend there will be a bung and the O2 sensor extensions are longer than they were before and they need to route them down the tunnel next to the driveshaft then turn the corner and bolts straight into the tail pipe

Thanks for everyone’s responses!

[Steve M]

Clever - putting them near the exit will make the cats look like they are doing an extra good job. Not sure I'd want to be running wiring harness extensions through the tunnel, but shouldn't be an issue as long as they secure them properly.

[cashcorn]

Can you take a pic of the new tail pipe with the bung? thanks!

[Sniper]

It’s at Woodhouse 2 1/2 hours away from me atm.
When I get the car back, I will try to take a pic for you.

[cashcorn]

Sniper, I just checked mine. I also have Belanger headers with their hi-flow cats & a stock mufflers. It's just like you said. With the headers being longer, there is no room for the hi-flow cat so it is after the turn.

[Sniper]

The sound is LOUD!
And the sound matches the cars looks now.
It brings back the feeling I had in my old Gen I.
The tone is hard to describe but it’s perfect!
I absolutely hated the stock exhaust sound.
Thank you Belanger!!!!!!!!

[Sniper]

I wasn’t able to get a pic as when I picked it up, it was already off the lift but here’s about where the 2nd sensor should be...

C1F28A84-3A5B-401B-81CF-05E268320E82.jpg

[ViperPete]

I wasn’t able to get a pic as when I picked it up, it was already off the lift but here’s about where the 2nd sensor should be...

C1F28A84-3A5B-401B-81CF-05E268320E82.jpg

Secondary o2 does not go there. It goes just after the cat. At least thats how my Belangers came...


https://driveviper.com/forums/cache....psfb6aicqr.jpg

[Sniper]

Little sound clip, sound is way better than the vid captures...

[Scott_in_fl]

Gotta admit, that sounds pretty damn good!