Does anyone have any sound clips of these test pipes on a stock exhaust system?? Also are there any power gains in the butt dyno?

 

We've been waiting patiently for sound clips from a couple of customers who said they'd send us one, but nothing yet. Expect them to generate some rasp in the midrange rpm but it goes away quickly and is not as prevalent as other test pipes have proven to be.
Gains are proven at around 7-9 HP. It's enough of a kick that you'll feel a difference in the butt dyno, but don't expect them to throw you back into your seat!

Here's our current sale on them if you're interested:

https://g35driver.com/forums/exhaust-vendor/93424-new-strup-performance-test-pipes-sale.html

 

test pipes should give you some nice numbers. but id go with fast intentions if i were you