Stuck for an exhaust. Help!!!! Got the exhaust but Help

[Liz]

H & S will do what you want - of course they may charge extra for it, but having owned one the quality is well worth it.

[markiii]

Iv done abit more research now and thinking of getting rid of my percats and getting either a zero manifold or h&s manifold, but along with either a cobra quad exit or h & s exit. iv looked into ppe headers but they are a little pricy for me, also been looking at the forum about the db levels of the exhausts. do you know if i had a H & S fitted would they be abe to give me a quad exit as i prefer the look?

Peter Wright has just that

H&S will do whatever tips you want

[NickNJ]

Slight thread drift, how loud are the silverstone performance twin exits? I've read (on this thread I think) that they are louder then the H&S, are they too loud?

[markiii]

on an N/a I'd say they are louder, they were developed for ther turbo, whihc needs less silencing

[rabscott2003]

First thing is your precats, are they still in? If so gut them, or buy a che manifold (search on here or on spyderchat forum)
Main thing is to get the precats out though.

Thinking of buying a new exhaust mrs model with body kit, got new engine fitted 2006 mr2 engine, 2 o2 sensors,
1 exit tail pipe what would be recommend i also need o2 sensors too.

Thanks

[Anonymous]

Have a look here.    l viewtopic.php?f=8&t=30042 l

[manchestermatt1986]

Some one please help. Made the booboo of trying to rush a exhaust swap today because it was sunny and dry.

Iv bought a blitz nur spec s.

Iv took the stock off and now my car is off the road. Need to double check two things.

I need the nuts for the two bolts that have springs attached that marry the cat and exhaust, and secondly two gaskets. One for the exhuast to cat and one for the exhaust to tip.

Done some research and found this: http://www.toyodiy.com/parts/p_E_2001_TOYOTA_MR2_ZZW30R-AKMQHW_1702.html

Two questions, are these the right codes for the nuts and bolts i need and secondly is toyo parts a safe option to buy from?

Cheers guys

[SimonC_Here]

The nuts are captive on the stock system and are attached to the cat. I don't know the thread or pitch and doubt Toyota have them separately.

The doughnut gasket is quite expensive (~£10) from Toyota dealership. I don't know if I've still got the receipt at home from when I went back to stock.

[manchestermatt1986]

The nuts are captive on the stock system and are attached to the cat. I don't know the thread or pitch and doubt Toyota have them separately.

The doughnut gasket is quite expensive (~£10) from Toyota dealership. I don't know if I've still got the receipt at home from when I went back to stock.

With the nuts being captive. I would of thought any old not and bolt will do as long as it marrys the exhaust and and cat, but didnt know if it had to be a specific one with the little springs.

As for the gasket i think i will just go to toyota then i know its the right part.

[SimonC_Here]

You need the spring bolts to allow the thing to flex without breaking anything, but if you can find a nut to fit you should be fine.

[rabscott2003]

I am wondering if someone could advise me i am thinking of buying this  m http://cgi.ebay.co.uk/00-07-Toyota-MR2- ... 7086889274 m

AND FITTING IT TOGETHER WITH THIS Sports cat  m http://cgi.ebay.co.uk/BLUEFLAME-SPORTS- ... 483b7b2496 m

And the final silencer and exit pipe seen here  m http://cgi.ebay.co.uk/BLUEFLAME-FULL-SY ... 483b7b1dca m

Can all this be fitted together?

[SimonC_Here]

Wow that looks like an incredibly bad photoshop on the sports cat page!

They should fit together. The blueflame exhaust and it's sports cat shouldn't be a problem. The manifold looks like a direct replacement for stock, so yes it should all work...

[rabscott2003]

I hope it works, i am planning to go for all this + get new 02 sensors i have a MRS so only has 2 sensors into the manifold, so i think is it the front ones as they call it. Am i right in saying that, here they are here  m http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... K:MEWAX:IT m

[onion86]

i have a MRS so only has 2 sensors into the manifold, so i think is it the front ones as they call it. Am i right in saying that

I think they are all the same, just the cat o2 sensor has a longer length cable.

[rabscott2003]

Am i right in saying that is doesnt matter what o2 sensor you need ie MR2 and MRS are the same although the ecu might be different it still doesn matter on the sensor.

[frogger]

Yes... But aren't your issues with speed signal wire and MAF? Just out of interest, have you got new codes for 02 sensors?

Back to your Question...

Same wiring (although they may have different length wires), same thread, same resistance (unless you get a oddball ebay job).
Get that Denso made one, for a MRS or a MR2 Mk3, and you certainly can't go wrong...

Strange thing about that auction is, the picture up top of the page is a denso one... one futher down is not!

[manchestermatt1986]

Finally got the new exhaust fittted this weekend, will upload pics soon. Ended up with a few nast y problems but all have been corrected, fingers crossed!   s:shock: :shock: s:shock:  

Thinking a sports cat and unichip or some sort of piggyback will be next purchase!   s8) s8)

[rabscott2003]

i got a price from MAS performance, they said they will fit a custom made stainless steel manifold, sports cat and back box the works all fitted for £750+vat they are based in Hert Welynn garden city so i think i am going to go for this.

What does people think?

[rabscott2003]

Sorry it wasnt masperformance it was predatormotorsport in welwyn garden city

[frogger]

I think I'd sooner hook out one, nay both, of my own eyes out with my index finger before paying £750 + VAT (£880?!) for a stainless steel MR2 exhaust system.

Just my 2cents though!   s:D s:D  

A custom built manifold is a pointless expense when there are off the shelf versions availble for about £100, can't comment on the price of a sportscat, but a decat pipe that replaces your standard cat is a MUCH cheaper option (and better in terms of flow) - only downside being you have to swap the cat back in once a year for the MOT.

You'll find a powerflow specialist will be talking in the range of 250-350 including fitting for a stainless system (excluding supply of cat and manifold, but including decat and manifold fitting). If sourcing and supplying parts yourself for a garage to fit, the fitting price should come in at under £100 for a full system inc manifold, or £50 for a simple cat back fitting.

Essentially, looks like £400+ too much to me (compared to a decat option) and I personally wouldn't be paying £400+ for a sportscat over a decat.  s8) s8)

[FGrob]

A custom built manifold is a pointless expense when there are off the shelf versions availble for about £100, can't comment on the price of a sportscat, but a decat pipe that replaces your standard cat is a MUCH cheaper option (and better in terms of flow) - only downside being you have to swap the cat back in once a year for the MOT.

A true custom manifold compared to the cheap ebay TRD rip offs is like comparing chalk and cheese, and a de-cat pipe is a waste of time unless you have it mapped, you are just chucking money down the exhaust pipe plus losing mid range torque  s:roll: :roll: s:roll:  

£750 + vat is a good price for a complete well made system, but then again we have seen some systems on here recently that would cetainly make your eyes water.

Rob.

[manchestermatt1986]

Hey guys, just to clear this up a little but keep hearing back and forward about de-cat and sports cat. Which is better and in what perspective? ie. the de-cat is better but only mapped, the sportscat is better due to backpressure?

i dont quiet get it

  s:? :? s:?  

also just on a side note i saw once a company selling sports cats and they were goign on about some kind of swirl effective it gave as so the exhaust gasses exited faster due to the i cat being shaped as to spin the gasses out, is this how they all work?

[FGrob]

Hey guys, just to clear this up a little but keep hearing back and forward about de-cat and sports cat. Which is better and in what perspective? ie. the de-cat is better but only mapped, the sportscat is better due to backpressure?

also just on a side note i saw once a company selling sports cats and they were goign on about some kind of swirl effective it gave as so the exhaust gasses exited faster due to the i cat being shaped as to spin the gasses out, is this how they all work?

I've had both and both needed a re-map, but then again I've got a PFC so I can always maximise my set-up, where you can't with a standard ECU and that's when you will lose mid range with a de-cat, a sports cat will give the advantage of no real lose of mid range but less restrictive than a standard cat and you will get through an MOT, as for the swirl design, I'm not sure about that.

I've gone with a all metal 200 cel cat, which has just got through it's second MOT no problem - that's at a Toyota dealership as well  s:wink: :wink: s:wink:

[manchestermatt1986]

So with a mappable chip unit, a decat with remap would be the best for performance? Or wouldnit not matter either at without cat / with sports cat as long as it's remapped?

[FGrob]

So with a mappable chip unit, a decat with remap would be the best for performance? Or wouldnit not matter either at without cat / with sports cat as long as it's remapped?

Actually no, I got more BHP with the cat fitted, a shade under 170BHP but the torque is very flat at 136 lbs ft from 1700 RPM - makes for a very smooth drive.

Rob