I like them. They are quiet enough for a daily driver, but get louder when you get on it. Here's the video. I did a thread last winter on the difference between the Hpipe and the xpipe, but can't find the Hpipe video.
Which is better, X pipe or H pipe?
- Thread starter GreenRegal87
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Your welcome!
If you notice, I did have to reverse the mufflers and slightly tilt them to keep them off the front control arm bolts and the driveshaft, but can't complain for the price.
If you notice, I did have to reverse the mufflers and slightly tilt them to keep them off the front control arm bolts and the driveshaft, but can't complain for the price.
Is it possible to run the pipes with the stock trans crossmember, or is the double hump crossmember absolutely required?
I've seen the driver's side pipe routed under the crossmember but I wouldn't do it on my car. It hangs down too low and looks bad in my opinion. You could do the dual system behind the converter, like the 442's had and keep the stock crossmember. You could also possibly modify the stock crossmember. Mine was modified but seemed pretty week to me. You could grab the tailshaft of the transmission and make the power team bounce up and down (flex in the crossmember).
Mr Green 87 & all; Last year I did a new system from the header flanges to the tail pipe tips. I had run an off angle H pipe since 91 (?) with 50 series Flow Masters. I came across a video form one of the major exhaust system manufacture's. But don't remember witch one, maybe Magna Flow (?), their engineer put together 29 minutes of info. You young tech guys should be able to find it? Anyway I'll try to summarizer what I can remember. An "H" pipe reduces tone & adds about 1% to 3% additional torque below 3000 RPM. An "X" pipe helps through the entire RPM band with an additional 2% to 4% torque increase over separate or true duals. What got me started on this new learning quest was my old 304 stainless system was bent on a muffler hop bender & had a bunch of kinks, my hangers & mufflers were mild steel, it look like brown soft smelly stuff. But what really got my attention was the explanation of muffler types. Disrupted flow, in other words Flow Master kill Horse Power & are loud, they disrupt the flow period. Straight through design with perforations actually disrupt flow very little at high volumes (RPM), hence more HP. Plus they are quite in relation to Larger HEAVER disrupted flow designs. And they come in 304L stainless, Borla's, I'm a convert.
Years ago, I modified my stock crossmember for duals. Last winter, I ran across a GForce on Craigslist, and replaced it. It's much better! Not sure about the jegs crosmembers, they might be ok also.
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