Resonated Test Pipes Vs HFC

DannyGT

I have removed my berk test pipes for those very reasons....that 'rasp' sounded completely retarded and sounded more like a 'rattle' and if you downshifted anywhere under 3k you would get the rattle noise during a downshift and there was nothing about it that sounded refined or even MEAN....if it sounded mean I would have been OK...But when you downshift and you hear that cackle rattle - the car sounded like **** to be frank.

With the resonated test pipes I basically get the same exhaust note, with 70-90% less rasp/cackle/rattle, whatever...

EDIT: I must say tho, I thru a CEL with the berk test pipes after about 100 miles and then after another 100 miles the CEL went off and NEVER returned. I had driven it for ~2500 miles after that! I thought that was important to share!

__________________
Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler
Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)

ZforMe

Do you need to update your sig?

__________________
13.369 @ 102.73 Bone Stock. BERK HFC's installed 5/14/09 @ 1490miles, 13.212 @ 106.15. Cobb Post MAF Hoses installed 3/20/10 @ 5,043miles, future: FI exhaust with 18" res and s/s cans.

DannyGT

Done

And the answer is no, the resonated test pipes do not impeed airflow. At least not the GTM's. They're straight pass thru like a true test pipe except it has that enlarged area to resonate the sound thru a grid inside the pipe wall.

__________________
Performance GTM Stage 1 SC, GTM Res.Test Pipes, Invidia Gemini Exhaust, GTM HD Oil Cooler
Wheels & Suspension AME Tracer TM02's 19x9.5F 19x10.5R w/ 265x35F & 305x30R, Hotchkis Sways, BC (BR) Racing Coilovers (Car Sold)