[clg82]

Originally Posted by SOCAL.M6.ZLE

Trust me... I love the 2650 product, and would absolutely go that route if my power goals were higher.

My journey started with only wanting a choppy idle, and more blower whine... figured 700rwhp would be where I stopped with the stock fuel system. Also had a tight budget at the time.

Now at 770rwhp... I love the power level... 2nd gear only hooks 20% of the time... but 4th gear feels like it could use more power... So I will likely keep going.

Like I said earlier... not sure why, but I really like the idea of keeping the stock blower, and finding ways to maximize its performance. I do agree, it will suck to have the blower re-ported but it will still be 1/2 the price of a 2650.

Keep in mind, the my investment in the Katech port + upper pulley was only $1,450... So, If I end up with the Katech lowside... and send the blower to KONG for an X-PORT, I will still only be $3,350 +/- into the stock blower.

As for the silly question "who am I trying to impress"? The answer is no one. Not sure why, but I like the idea of wringing more power from the stock blower, and love the whine from the faster blower speeds. IAT's have not been an issue with the cooling mods I made, so i think I am good to spin the blower a little faster and will likely stop at 850rwhp +/-

This has been such a fun process, despite the few steps back, and I have really enjoyed sharing the experience with all of you

I know I've been following your build, i was just just giving you shit. What you should really be saving for is getting that beautiful car out of impound once the CHP gets ahold of it. with that being said, i'm nowhere near your power level and i had my TCM tuned last weekend and it's a whole new animal. Just something to think about.

[Fenmore]

Stop at 850??
Who are you kidding??

[arpad_m]

I for one don't like to run hardware at or very near its maximum capability/capacity, so I would definitely not try to push a small blower and "see how far it can go". Every component has a sweet spot or a band where you can get the best blend of power, efficiency and longevity, so even if nothing bad happens to that 1.7-liter unit right off the bat, to me this feels like rolling the dice again and again.

[SOCAL.M6.ZLE]

GESI UHO 850hp Cats Have Arrived

3" In and Out
4.5" Diameter
7" Long
3.15 Pounds Each

Having them installed with V.Bands tomorrow...
More to follow

[Smokin19]

While just doing my oil change on the lift I found my cats were shot. I bought the ARH headers with their cats and they were gone (rattling) in 5k miles. I replaced them with GESI high flow cats. I also decided to go back to the NPP exhaust as the AWE Touring axle backs were just too loud. What I found out is the Kong Xport I did with the WeaponX lid allows the whine sound to really be heard, especially in touring mode. So for now I feel like I have what I was really looking for in a build. Good luck going forward.

[6spdhyperblue]

What is your enrichment lambda and is COT turned on?

If so is your cot set to stock values?

[SOCAL.M6.ZLE]

Originally Posted by 6spdhyperblue

What is your enrichment lambda and is COT turned on?

If so is your cot set to stock values?

COT was turned off after I gutted the ARH cats.

I will re-evaluate the COT values after I talk with my tuner.

[2023_ZL1-AUTO]

Originally Posted by SOCAL.M6.ZLE

GESI UHO 850hp Cats Have Arrived

3" In and Out
4.5" Diameter
7" Long
3.15 Pounds Each

Having them installed with V.Bands tomorrow...
More to follow

Those look familiar !!!!

[SOCAL.M6.ZLE]

Originally Posted by 2023_ZL1-AUTO

Those look familiar !!!!

HAHA, yes they do!

Wish I would have started with these, but I dont think they were out at that time...

[SOCAL.M6.ZLE]

Received on Friday... Installed on Monday... Car is back to having that deep mean tone... 15% less volume... 75% less smell... and a set of off-road pipes that can be easily swapped for dyno / race days...

The only downside is slightly reduced ground clearance. As the V band hangs about .25" lower than the collector.

Working on a quick video to share.

[Camfab]

Looks like your cats are the low point anyway, maybe it’s the camera angle….. properly installed V-bands are the way to go. The hardest part is insuring the flanges don’t warp during the welding process. I’ve found over the years that the machined flange v-bands are most likely to leak vs. the formed flanges.

[nighttowl]

Originally Posted by SOCAL.M6.ZLE

GESI UHO 850hp Cats Have Arrived

3" In and Out
4.5" Diameter
7" Long
3.15 Pounds Each

Having them installed with V.Bands tomorrow...
More to follow

This may have been covered already, but on those cats is that 850 total or 850 per cat?

[SOCAL.M6.ZLE]

Originally Posted by nighttowl

This may have been covered already, but on those cats is that 850 total or 850 per cat?

Correct.... 850hp per cat