Aaaiittchhh Pipe

Ewan · Jul 27, 2016

Finally decided that the MC-V should make more noise. So after hardly any persuasion from Phil at all, I'm off to Newbury next Tuesday to have an H pipe fabricated and fitted. Hopefully it'll make it a bit more like this

. Will attempt to take "before and after" videos.

leeq61 · Jul 27, 2016

I'm thinking of doing the same Ewan to my GS, it's loud and throaty as it is but I want more noise

. Will be interested to see and hear your results.

m1980k · Jul 27, 2016

I'm not convinced that the H pipe made a significant difference to my exhaust volume. With the window down, it doesn't seem much louder. But by replacing the resonator beneath the cabin, a bit more noise gets in when the windows are up. I'd say it's a cheap upgrade that does make a small difference.

Feel like I really need to replace the 2 pairs of standard cats with something freer flowing, but that's a bit more expensive than an H pipe!

GeoffCapes · Jul 27, 2016

m1980k said:
I'm not convinced that the H pipe made a significant difference to my exhaust volume. With the window down, it doesn't seem much louder. But by replacing the resonator beneath the cabin, a bit more noise gets in when the windows are up. I'd say it's a cheap upgrade that does make a small difference.

Feel like I really need to replace the 2 pairs of standard cats with something freer flowing, but that's a bit more expensive than an H pipe!

My cat replacement for 2 200 cell sports cats cost about Â£600

m1980k · Jul 27, 2016

GeoffCapes said:
My cat replacement for 2 200 cell sports cats cost about Â£600

But I have primary cats as well and the perfectionist in me can't just have them gutted.

Ewan · Jul 27, 2016

I expect it'll be enough for me. But of course, I can always go back and have a bit more removed and replaced with hollow pipe.

GeoffCapes · Jul 27, 2016

I got rid of the primaries. No squashed pipes for me.

Yeti · Jul 28, 2016

Was very disappointed with the noise from the H pipe alone. Thinking I need to dump the from cats, fit 200 cell race cats instead of the current round set and possibly replace the rear silencer as well

StuartW · Jul 28, 2016

Have you done any mods to your Strad or is it stock?

Contigo · Jul 28, 2016

Yeti said:
Was very disappointed with the noise from the H pipe alone. Thinking I need to dump the from cats, fit 200 cell race cats instead of the current round set and possibly replace the rear silencer as well

I assume you are talking the 4200?

Yeti · Jul 28, 2016

Strad is stock apart from some additional carbon

StuartW said:
Have you done any mods to your Strad or is it stock?

Yeti · Jul 28, 2016

Strad is stock apart from some additional carbon

View attachment 38336

View attachment 38337

StuartW said:
Have you done any mods to your Strad or is it stock?

Yeti · Jul 28, 2016

Stock apart from some home made carbon extras

StuartW · Jul 28, 2016

That carbon really does look special, a fine job you have done there

m1980k · Jul 31, 2016

I'm slightly revising my opinion of the H pipe having got my car back and driven it again. I think it does make a pretty big difference, with a bit more growl and quite a lot more noise coming into the cabin. A must for the GS for only Â£200 quid. And the exhaust remains quiet when not in sport mode.

Might not have as much impact on a 4200 with standard exhaust though.

BenjaminBraddock · Jul 31, 2016

My 4200 is currently with Larini H-pipe and factory rears (secondary cats also removed) - the difference over stock is noticeable in the growl and more bass but it isn't noisy.

The factory rears suppress the sound massively compared to when I had Larini rears and H-pipe combo - huge difference and it now doesn't get the attention as I approach that it used to - in summary if it's noise you are after then need to have the rears changed to get the most noise out if the H-pipe.

Yorkshire-Trident · Jul 31, 2016

I have found it usually takes a bit of time for the exhaust mods to take effect. When I got the x-pipe I didn't think it made much difference, but after a few hundred miles it had certainly changed the note. Then when I fitted the Larini's it was the same. A bit different, but not 2k better. Then after another couple of hundred miles they had completely changed the sound.

Contigo · Aug 3, 2016

So come on Ewan, how was the drive home. Happy or want us to remove the secondaries?

Contigo · Aug 3, 2016

Contigo · Aug 3, 2016

I could tell that you wanted a little bit more from it..... The mad thing is, the same mod on a GTS add so much more to the mix but with the double cats and extra silencing despite valves boxes means the GS with an X or H pipe doesn't add a massive amount. What you need is a proper 4.7 lump

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