Rock and Rumble (Part 1, Rumble) SLP (Long tubes/Powerflow x Pipe/Powerflow axle back

[PatrickfromMD]

This last week, to compliment my axle back Powerflow system, I installed the complete SLP exhaust package.

The install was done at T and T Performance in Frederick Maryland http://www.tandtperformance.com , the SLP dealer I purchased the system from. This system is first class. No more adaptors as its 3 inch end to end, and all bolts together with no customizing. Their Powerflow X pipe assembly actually includes Polished SS Loudmouth II bullet mufflers. You can buy a delete option if you like, but personally I like them
I’ve included a little video of the install, and later this week I hope to post some clips of the sound of the completed system.
TNT is partial to Camaro’s (there was a 68 w/blown 502 , a 69, and another 2010 the day I was there).
It took a good 3 -3 1/2 hours till they were happy with how everything lined up (this was their first SLP system, previously they had done ARH systems). The headers look great, nice shine and SLP logos on them.



The last pic shows the crossmenber cover. Dont bother, it wont fit if you go with the bullet mufflers. SLP will modify their instructions. As we found out, its not needed, exhaust fits nice and snug

We did a baseline dyno as well as ¼ runs, but have yet to get back on the dyno, and although the car is running much better at the strip, I could not get a good time on account of some shifting problems (seems like the car hits the rev limiter before it makes the shift now. This happened in both D and Sport modes).
This is SLPs quietest combination. The idle is a quiet rumble, but wide open after 3000 RPMS its sounds like a V12 and is plenty loud for me. The AFM is going to need some tweaking to limit the times it comes on. It’s definitely noticeable, and from what I’ve read, it’s going to be noticeable in any car with a good exhaust system.

Stay tuned for more video of the exhaust and then install (part 2, Rock). A good sounding exhaust must be complimented by a custom sub enclosure, and 5 channels of digital Alpine power in place of the factory piss ant amp.

[Andro]

Sweet

[tandtperformance]

patrick thanks for giving us at t & t performance the chance to hook your new camaro up i think it turned out great and make sure you look us up when your ready to go with that cam & pro charger or maggie we will be here to help

p.s. dont forget we need to get that back on the dyno and tune that ride to go with your new exhaust system

[PatrickfromMD]

Originally Posted by trsc1970

patrick thanks for giving us at t & t performance the chance to hook your new camaro up i think it turned out great and make sure you look us up when your ready to go with that cam & pro charger or maggie we will be here to help

p.s. dont forget we need to get that back on the dyno and tune that ride to go with your new exhaust system

The dealer has the car today changing the oil and re-doing the stripes.
The performance car service manager called me a short time ago saying how they love the sound.
I hear its quite a hit in the service row as they were revving it.
First mod seems to be ok with the dealer
Cold Air Intake is next, the lets tune it
I’m still researching the VVT cams right now.
You still stocking the SLP under drive pulley and Thermostat?
Got to go pick up the car now……………
***Chevy dealer, if your reading this, it’s just hypothetical, I’m not really considering any of these****

[SGOS252382]

Has your car been tuned? If not, are you getting it tuned? Just wondering how you're going to fix the shifting issue.

If your car hasn't been tuned, why would a new exhaust make it hit the rev limter on the shifts?

[NAHURRY]

Cant wait to hear a better sound clip...if you can

[Missile Man]

Sounds great!
What effect sound wise in cab?

[PatrickfromMD]

Originally Posted by SGOS252382

Has your car been tuned? If not, are you getting it tuned? Just wondering how you're going to fix the shifting issue.

If your car hasn't been tuned, why would a new exhaust make it hit the rev limter on the shifts?

Its not yet tuned. The plan was to tune it after a CAI. I may not be able to wait with the shifting issue.
My tuner was driving Tims car in the lane next to me, and ho had no advice to give either (though he could not hear it on acount of Tims car being so freeking loud. I though my car sounded great, but next to his, no one heard it)

I did clear the computer (and the exhaust codes went away) but have not had a chance to drive it (lots of rain). I want to have the HP tuners for myself to revert back to stock when I have to and log some runs down the track. My tuner is pretty good, but still working out the tweeking on the Autos, so I’m watching how that turns out. I have not figured out if I want the std, or pro. Do I want a wide band sensor installed to monitor, still researching that one.
Now, had I had Jeramny Formato right here, instead of where you are, I may not still be holding out. I have the GM HI PEF article. Have you been seeing him as you do tweeks, of just the one time?