future62

Just watched this- apparently not a huge difference


Good for me because I prefer the sound of straight duals on the VQ. Sounds like a Porsche 911

slartibartfast

iTrader: (7)

Nice! Love documentation. Wish there was more focus on the sound. The ARK Grip has an x-pipe for anyone interested.

Bravo at

Just saw the video. Data guy here too. Full Tanabe Medallion, X-pipe baby!

Ape Factory

iTrader: (3)

They're also testing on a larger displacement, lower revving V-8 engine with a carb. The exhaust pulses on our cars are going to be affected differently by the exhaust design than the V8 engine they're testing. Honestly though, given we're working with a fixed exhaust length, inside diameter and smooth transitions/mandrel bending will be more important than the type of crossover (or lack thereof). The crossover can also have an effect on overall sound out the tailpipes.

future62

While the powerbands and phasing are different, we're still ultimately dealing with 2 cylinder banks merging exhaust pulses. If anything we might be less affected by it due to the fact that the VQ has evenly spaced exhaust pulses, while cross plane V8s don't.

I agree though that ultimately generally the pipe parameters matter more, and the biggest practical difference comes in sound. I hate the merged sound- that gives the trademark Chewbacca cry- but the separate sound is very reminiscent of Porsches and the E46 M3.

ezbme

Could anyone tell me what this is? I am being told it is a MXP y pipe. Might I see a little more hp? Tempted to buy.

kroy

Funny you mention that because sound was main reason they went X pipe instead of H pipe like HKS.

H pipe

ezbme

I was more wanting to confirm perhaps the brand and any thought on it. I think it looks okay and can probably bring a few more hp to the car.