They cost a lot, install is a huge PIA, so why bother getting them? Ha!!! How about cutting nearly two tenths off your 1320 time and sounding like fire breathing dragon!!!
with pypes LTs and catted H pipe 3 runs.
13.22 @ 105.64 mph sixty foot 2.15
13.33 @ 104.70 sixty foot 2.15
13.30 @ 104.67 sixty foot 2.14
last month no headers similar air temps...(within a few degrees)
13.40 @ 104.20 sixty foot 2.17
13.51 @ 103.00 sixty foot 2.15
13.62 @ 101.95 sixty foot 2.15
Car sounds like a beast, got lots of complements. After the install I thought it might be too loud..........ah, dont think that anymore.
Great mod, glad I did it. Glad I had two buddies willing to help with the install too! LOL
patrick

with pypes LTs and catted H pipe 3 runs.
13.22 @ 105.64 mph sixty foot 2.15
13.33 @ 104.70 sixty foot 2.15
13.30 @ 104.67 sixty foot 2.14
last month no headers similar air temps...(within a few degrees)
13.40 @ 104.20 sixty foot 2.17
13.51 @ 103.00 sixty foot 2.15
13.62 @ 101.95 sixty foot 2.15
Car sounds like a beast, got lots of complements. After the install I thought it might be too loud..........ah, dont think that anymore.
Great mod, glad I did it. Glad I had two buddies willing to help with the install too! LOL
patrick