Right now i have dual exhaust with my rear cats removed and di/do flowmaster, dumped in front of axle.

I was wondering if there would be power gained or loss if i went back to a y pipe and single exhaust? Or leave it and throw in a x pipe? Or if i should i put 2 si/so mufflers on there?

I bring this up because i will be getting my infamous manifold leak fixed this week and i figured while i was there i might change some things.

Thanks

 

What size pipe are you running? 2.25" pipes would be the only real improvement. Two mufflers usually just sounds better, no major difference. True duals will flow and run better than a Y pipe system.

 

If your happy with the sound, I would just leave it...

 

what are the details of your current system, duals is not anywhere near enough info, we need pipe size, etc

 

Stock 2.5 piping. Was thinking of leaving it and just putting a X or H pipe in there also. Would there b any gain from that?


Thanks

 

if u get 2 inch piping sounds like a dang v8 6.0 silverado 2500 hd.

 

You definitely need an X pipe.

Oh not quite, but close in the rasp which can be sweet.

 

that X might add a little rasp into the equation also...

 

Toolman i've had my exhaust setup before with 2.5" true dualed straights and rear convertors removed. With an X-pipe installed it sounded like a muffler installed. The exhaust still had the pop but even with my shift points set at 5500 rpms their wasn't any raspiness or deceleration popping. To me it sounded like I had a magnaflow muffler installed. With the x-pipe installed I noticed a slight bottom end torque increase and a little top end loss over the straights but nothing extremely noticeable. Today I went and had a y-pipe installed with a 3" straight pipe ran out behind the rear tire. It sounds great not raspy no deceleration popping and it get's quiet when cruising but will still let out a loud growl when I mash the go pedal. I also noticed a gain in the low end with this setup over true dualed straights and the top end hasn't changed from what I can tell. I have also had two single in single out 40 series flowmasters dumped before the rear axle on my truck. I ran this setup for about 3 months and couldn't take it anymore. The flowmasters took away lowend torque and sent my top end power into hybernation. I hated them. I don't have any dyno charts to back up my claims but my seat of the pants dyno seems to be fairly accurate. I highly recommend the 3" single exhaust. It seems to be the perfect balance between sound and power.