cheers MikeMikeFish wrote: ↑Wed Mar 01, 2017 8:51 pmThey are sprung open. You need vacuum from the engine to close them. So if you disconnect the vacuum hose there is no vacuum to close them and the springs holds them open. Assuming they are not jammed closed that is.
I think cross pipe makes F all difference for power which is the point of having it. For noise I'd be surprised if there is a great deal of difference but somebody already said earlier it makes it more raspy.
yes your right the straight pipes are cheaper which is always good lol, cheers for all the info im going with that option nice onecoffey555 wrote: ↑Wed Mar 01, 2017 9:27 pmI went for straight pipes because I was keen to keep the V8 burble. Others who have had an x-pipe say it retains the burble but I was not going to take any chances (the Quicksilver system had one).
The car now has a lovely deep engine note under load in a high gear, sounds epic further up the rev range and pops and crackles on the over run once the cats get hot after a good back road blast.
If you disconnect the vacuum pipes the valves are always open which makes cold starts a delight
Think straight pipes are cheaper as well.
Where can I get this done? Mrc? Jcweldfab? Etc etc.?
They have either misunderstood what you are asking or are on drugs! I've had whole exhaust made up at one of these places several times and it takes about 4 or 5 hours (single branch exhaust though). To cut out 2 bits of pipe and weld 2 straight bits of pipes in it's place is a simple job.
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