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safe to keep downpipe loose?

2589 Views 10 Replies 9 Participants Last post by  firesoutmatt
hey guys, im thinking about getting a smoke stack kit from black cloud diesel..i was going to delete the cat and i untighend the downpipe bolts to see if i would like the sound. At idle it sounds stock, but idk if that is because some of the noise is still going through the cat and muffler, when i drive it, the truck sounds awesome around 2500 RMP and up. Is it safe to leave the downpipe unbolted from the rest of the exhaust or should i tie it back up to the exhaust untill i get my kit?

Thanks alot, Jay
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I'm thinkin thats a real bad idea....

Not to beat a really dead horse but, Backpressure has been kicked around here like a readheaded stepchild!

I do have a Turbo Back Aftermarket Exhaust system on my truck,
But I would NEVER try to out think the engineers that tested & designed it!

I remember in the 70's & 80's when the big four Japanese Motorcycle Manufacturers (Honda, Yamaha, Kawasaki & Suzuki)found that finely tuned exhaust systems gained them mucho horspower on their 2-Stroke Roadracing & Motocross Bikes. /ubbthreads/images/graemlins/biggrin.gif

Those hand built pipes were works of art and extremely expensive too
they spawned the enormous aftermarket Exhaust system market for all types & brands of motorcycles! /ubbthreads/images/graemlins/eek.gif

So, If it were my truck I'd leave it installed AS INTENDED by the manufacturer...(they kinda know more about it than I do)

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