Willall Midpipe Installed

[GGTTRR]

I've just installed the midpipe in my new toy.

We have run it on the dyno before and after and there was 13KW atw increase.

The car sounds great on full blast but there is a fair bit of drone at normal speed.

[Munro]

Willalls have made one for me but havent had chance to get it fitted yet.

When I drove Keirs I didnt think the drone was too bad, but I didnt drive it around that much.

It isnt bad enough to want to pull it off is it?

[Wild Thing]

I have fitted one as well........... I agree with GGTTRR the Willall Pipe sounds awesome under power, however, I would have to say there is a bit of drone around 2k rpm when you are using partial throttle (more so when you are in 4th, 5th or 6th).

Still when you hear the sound it makes when you are changing down though the gears (with the blip) nothing much else matters.

I wuold fit it (really quick job) and try it, you can alwasy replace with oem if you don't like it.

And no I won't be pulling mine off

Cheers

Mark

Edited June 26, 2009 by Wild Thing

[Snowman]

I haven't really noticed the drone I have to say.

But then maybe having come from a modded R34 GTR where the drone is 11ty times worse I don't notice the minimal amount this pipe makes at all.

[70RTY]

Is anyone in Qld with one of these mid pipes willing to meet up to help me decide if this is the right product for me?

[GT-Ricer]

  70RTY said:

Is anyone in Qld with one of these mid pipes willing to meet up to help me decide if this is the right product for me?

Challenge Street Spec Y pipe : good quality pipe, no drone, good gains. AU$1050 landed at your door.

http://www.gtmotoring.com/product_info.php...products_id=162

Edited July 2, 2009 by GT-Ricer

[Martin Donnon]

Thats good to see.

The WR35MP Willall Racing Midpipe made in Australia by Australian Fabricators (not China) using high grade stainless, full length flex joints, TIG welding, and featuring our internal deflector plate to dampen noise without adding the restriction of a muffler(s) is $800 on your doorstep. Great comparison

Edited July 2, 2009 by Martin Donnon

[Swiper the Fox]

  Martin Donnon said:

Thats good to see.

The WR35MP Willall Racing Midpipe made in Australia by Australian Fabricators (not China) using high grade stainless, full length flex joints, TIG welding, and featuring our internal deflector plate to dampen noise without adding the restriction of a muffler(s) is $800 on your doorstep. Great comparison

Ausie aussie aussie.

even if slightly more expensive id prefer to purchase the local product.

[Martin Donnon]

Thanks DiRT!

Great to hear, this pipe is also one of the most popular and consistent re: INDEPENDENT dyno results Stateside

There are a couple of reasons for this. The first is that we use a reversion 'stub' in the pipe inlet to promote turbulent rather than laminar air flow the moment the exhaust enters the pipes. Secondly is we use the diffuser in the Y section which is a carefully calculated length of flat plate that in effect balances the resonance and noise of the system. In other words we can have the same db reading as a lightly muffled system without the restriction, weight, and expense of adding 'cans' to the system. Thats the difference, we like to engineer stuff with a solid thought process rather than just make something that looks cool and shiny

[Munro]

Cool. when can you fit mine Martin?

[GT-Ricer]

  Martin Donnon said:

Thats good to see.

The WR35MP Willall Racing Midpipe made in Australia by Australian Fabricators (not China) using high grade stainless, full length flex joints, TIG welding, and featuring our internal deflector plate to dampen noise without adding the restriction of a muffler(s) is $800 on your doorstep. Great comparison

Very nice! Challenger is designed and QA in the US, fabricated in South Korea, not China.

It has two resonators on the Street Spec and no resonators on the Race Spec, which looks similar to the above, with shorter flex joints, wider Y-Collector, same power delivery as Street Spec but louder.

I would pay $250 more to guarantee no cruising speed drone, as it would drive me mad and force to remove it and flog it on ebay for half the price.

These pipes are polished so they look a bit better finished, not that it will matter much to most.

[23 GTR]

Is your wife impressed with the larger midpipe Munro?

Edited July 8, 2009 by mitric88

[Munro]

Ha Ha. Yes I had the Willall midpipe fitted today & my wife is well pleased with the extra girth & increased thrust.

I have done just over 1000 kays with the stock system & I love the new midpipe. It sounds almost the same on start up & idle but when you put the boot in it sounds much better & feels like a real performance car. Very pleased.

I was concerned it might drone a bit but have not noticed much difference at all at cruise speeds. It only seems to make the sweeter noise when you are on the throttle & that is exactly what I wanted.

The WRX STI that I dusted off this afternoon seemed to agree with me on the noise factor. He just loved the sound & made sure to let me know at the next set of lights!!!

I was lucky enough to be able to do back to back noise testing today as I was able to cruise up the Gorge this morning & again this evening (for those not from SA this is one of the best "hammer" roads in the state with lovely sweeping bends & cambers up in the Adelaide hills) & the increased engine note is fantastic.

Full marks Willall. Great product. Great price. Anyone else out there that hasn't got one of these fitted yet - dont hesitiate. As Dirt Said....... Aussie Aussie Aussie.

[23 GTR]

Yes, I was amazed by the difference the middpipe made to your car.

And you are a top bloke for sharing your R35 experience with me. There's too many pretenders out there that are all talk.

And credit to Willalls for contributing to the experience with their best.

[limitless]

Can someone record the sound and post it up. Thanks.

[Munro]

See www.willallracing.com.au there are some good soundtracks on there

It's different sound to the old RB26 on wastegate! More Ferrari like. Very addictive.

[70RTY]

Munro,

What does it sound like at constant throttle at 60km/h and 100km/h?

Some in car sound clips (especially at the above speeds) would be very useful.

[Munro]

Sounds the same at 60. I haven't sat on 100 yet (just wizzed past it!!!) so will check it out & let you know.

You wont look back, this pipe is the bomb...

[Gibbo_R35]

OK...all this midpipe talk got me motivated.

Mid-Pipe is ordered.

Let the games begin.

[Wild Thing]

  70RTY said:

Is anyone in Qld with one of these mid pipes willing to meet up to help me decide if this is the right product for me?

If you are around the Sunshine Coast at all give me a call and you can have a listen.

Cheers

Mark