I did this as a short term solution till I got some fab work finished on my exhaust. The custom Forged Performance down pipes are 3.5" and reduce down to 3" then i just threw some 3" dumps on the end. The car only had a base tune and i never did get any videos driving

Here are pictures of the dumps off the down pipe I have a short video of some light reving the car

 

if i have the turn down shoot behind me (no directly under me but closer to the rear axle) will my cabin still be shakey and droney

 

I don't have a turn down but I do have an e-cut out that is located basically right under me. I have it open 90% of the time. Had the car back since April. Its loud but you get used to it. Open downpipe and open wastegate FTW!!!!!!

 

did it shake/vibrate the cabin???

 

Yea it does, but its not really all that bad. You get used to it.

 

The boost activated cutouts that Sound Performance makes are really nice units. They stay closed/quiet until around 4 or 5 psi. After that they open really quickly.

 

Way too loud w/open dumps or turn downs. I'm running an APS 3" dual exhaust with 3.5" T.P.'s (very loud and drone too)(I did get used to it). I can't even imagine running w/open dumps/turn downs.

 

I only used turn downs. Any trip over 5 minutes, I have to wear ear plugs. Its pretty stupid actually. You smell like exhaust in 2 minutes and are light headed after 5.

In my vid, you can see how much Sharif loved tuning it. respirators FTW.

 

lol. I guess I'm a year behind. So, did you keep running the turn downs or did you modify that setup?

 

everything is in steps and still havent gotten around to building an exhaust yet.

 

Boost activated open dumps here...car is dynomatted from firewall to the rear cargo area...assinine LOUD @ WOT!