cat back or straight thru pipe?

3rd March 2009, 21:16

was thinking of getting the supersprint straight through pipe but what is the difference in power gains and exhaust rumble between a straight thru pipe and cat back (i already have a s/s piper backbox)

3rd March 2009, 21:32

Some bhp gains and a better sound from the exhaust...
For what they cost you may as well get one, and you can fot them yourself

3rd March 2009, 21:32

I wouldn't mind hearing answers to this question too

3rd March 2009, 21:36

from what i know.. cat back simply removes the silencer.

race centre section removes all restrictions such as cat, silencer, and is a straight through pipe from the manifold drop down to the backbox. thus being less restrictions than a cat back, exhaust gases should flow more freely and quicker, meaning increased performance, quicker throttle response etc...

if you want my opinion, out of the two ive just bought a supersprint race pipe. £69 from kam racing, got delivered today, being fitted on thurs. will let you know how it goes and my thoughts if you can wait till then.

3rd March 2009, 21:44

i think cat backs have a center silence only small through and straight throught could have no centre silencers and no cat

3rd March 2009, 21:46

yeah if u woulnt mind mate?

3rd March 2009, 21:50

so the difference power wise is minimal?

3rd March 2009, 21:53

i have a stianless steel strait through ssytem on mine from the manifold and a 4inch rolled tip backbox its so loud its unbelieveble iv had loads of complaints in me street lol

3rd March 2009, 21:53

from what i know, yeah its minimal but straight through is more of a power gain as the cat is a large restrictor.

straight through is called so beacuse its just a pipe from manifold to the backbox.

cat back explains itself, from cat to backbox.

pm me thursday and ill tell u what i think.

3rd March 2009, 21:54

i think i will just get the cat back then lol

3rd March 2009, 21:55

im just gonna swap my cat back on for MOT time. simple enough job.

3rd March 2009, 21:57

yea need to get a cat casue it was like that when i bought the car and the guy didnt have the cat, mot in june so shud be able to get one by then

3rd March 2009, 21:59

Hope you don't mind me posting this on your thread but hopefully it might help you out too..

Will a Supersprint system sound really really loud at low revs with a race straight through system or just at high revs? I don't mind it being loud when going for it but just driving normally down my road or around town, will it sound respectable and not piss the neighbours off??

Cheers.

3rd March 2009, 21:59

cool.
im gonna fit mine again by myself i think

3rd March 2009, 22:01

Quote:

Originally Posted by JRC1

Hope you don't mind me posting this on your thread but hopefully it might help you out too..

Will a Supersprint system sound really really loud at low revs with a race straight through system or just at high revs? I don't mind it being loud when going for it but just driving normally down my road or around town, will it sound respectable and not piss the neighbours off??

Cheers.

again from what i know....

supersprint race systems are louder than standard centre systems.. however are at peak loudness about 3500rpm....

thus if u keep it below it shouldnt be ridiculous

as i said to the other guy
im having my supersprint race section fitted thurs

so if any of you want info/experiences/sounds etc pm me then.

3rd March 2009, 22:13

im not sure what mine is but i think its just a shit back box i have a scorpion one i am going to put on of my old car that should sounds better, the one i have is absolutly ridiculous when im on motorway doin 70 its that loud it does me head in a cnt even talk to anyone in the car lol

3rd March 2009, 22:13

i got a scorpion

lmfao at ur post tho

3rd March 2009, 22:28

lol mate its terrible when a take girls out in me car for a drive a cnt even here what they saying when they speekin am getting the frigin thing of this weekend

3rd March 2009, 23:43

Quote:

Originally Posted by Hopey121

lol mate its terrible when a take girls out in me car for a drive a cnt even here what they saying when they speekin am getting the frigin thing of this weekend

thats good cuz whenever girl talk they're moaning so just put your foot down, turn the music up and enjoy the day

4th March 2009, 00:33

yeah man... who wants to hear what theyre saying anyway ?

4th March 2009, 21:32

well just had mine fitted today... gotta say im impressed with it so far... not popping as much yet.. but i guess that will do it when it settles in?

will post vids later

4th March 2009, 23:37

yer deffo will

mine pops all the time lol, and as for the girls talking lolllllllll

5th March 2009, 00:12

getting the de cat pipe fitted on friday , looking forward to the result

5th March 2009, 00:39

will be loud

lol

5th March 2009, 01:22

had two girls in the back tonight...
easily drowned them out

5th March 2009, 10:59

The catback and race pipe are exactly the same apart form length.
Ive had both fitted to the car, both are same bore/diameter. The race pipe has a very louder sound than the catback and pops and bangs a bit more/louder.
Theres a slight drop in power with the catback pipe but not really that noticable, also its alot better if you do motorway journeys as it is quite loud there. Both pop and bang but the race pipe just does it alot louder with a slight performance increase

5th March 2009, 11:01

Quote:

Originally Posted by MR_N

The catback and race pipe are exactly the same apart form length.
Ive had both fitted to the car, both are same bore/diameter. The race pipe has a very louder sound than the catback and pops and bangs a bit more/louder.
Theres a slight drop in power with the catback pipe but not really that noticable, also its alot better if you do motorway journeys as it is quite loud there. Both pop and bang but the race pipe just does it alot louder with a slight performance increase

how is that ""exactly the same"... if theres a difference in performance, pops and noise?

5th March 2009, 11:04

Quote:

Originally Posted by goodall3518

well just had mine fitted today... gotta say im impressed with it so far... not popping as much yet.. but i guess that will do it when it settles in?

will post vids later

Ordered my Full Race system yesterday mate. Hope to receive it today or tomorrow.

What's it sound like? Nice at high revs? What about at low revs?

Cheers

5th March 2009, 11:11

orded my back box and streight through system on sunday, hoping it'l be here today coz a cant wait any longer. just wanna get it on the car

5th March 2009, 11:14

Quote:

Originally Posted by goodall3518

how is that ""exactly the same"... if theres a difference in performance, pops and noise?

exactly the same in diamtere and bore. only because someone said about the cat back being a smaller bore

5th March 2009, 12:56

Quote:

Originally Posted by dazza88

so the difference power wise is minimal?

IMO - Yes. It's more of the noise your paying for to rub your ego and make your car sound like a monster when really its a garlic and frog 1.6 Hatch.

5th March 2009, 13:15

Cheers, I think I will go for just the cat back then as I do alot of motorway driving.

5th March 2009, 19:44

see how when people say just put the cat back on for mot time, whats involved? how easy to do?