Why even consider spending time and money on a product that wont give you both SOUND and PERFORMANCE?

 

^^^ +1

you can get noise makers at the dollar store

 

Not sure why you didn't notice any gains, I had much better results. When I overlay my before and after dyno charts, they are almost identical until 4500rpm where the curve gains a consistent 6-7whp over the previous chart all the way to redline.

Click here for all the details, dyno chart comparison, and dyno videos to compare sound:

https://g35driver.com/forums/tuner-d...pipe-dyno.html

 

His dynos weren't as controlled as yours.

 

Why do you have that Stillen CAI/JWT Pop? It's just hot air noise maker.

The HR y-pipe just doesn't add sound, it adds responsiveness. And according to Riedonly's dyno, his VQ35 is seeing 6-7whp/wtq above 4500rpms. These gains are right in line with the MD XYZ pipe plus the HR y-pipe doesn't nueter 15whp/wtq below 2800rpms like the XYZ does and the HR y-pipe is about $350-400 cheaper.

 

thanks for these information