exhaust help
exhaust help
Author
Discussion

dean.h

Original Poster:

149 posts

250 months

Tuesday 11th April 2006
quotequote all
what is best sport pipes with cats
standard without cats
has anyone ever been done for a car with no cats how much is the fine .
are the flames coming out the back a dead give away to the boys in blue .from what ive seen most decat

morebeanz

3,283 posts

265 months

Tuesday 11th April 2006
quotequote all
I think most people graduate from one to the other until they get too loud and stop!

From a performance perspective, it makes only a marginal difference, and the general PH wisdom has it that de-cat and standard back-box works best.

Beyond that, there are many who feel that de-cat AND sports pipes is too much for any apart from the die-hards. you know who you are!

Of course, driving the quietest Cerb on the planet, as I do, I don't even get flames despite having a de-cat!

carl_w

10,739 posts

287 months

Tuesday 11th April 2006
quotequote all
My understanding was that with a decat and standard backbox, the backbox disintegrates fairly quickly. Then a new one is more expensive than the sports pipes.

My personal journey has been:
1) Bought car with cats and sports pipes (previous owner must have found out the price of standard backbox)
2) One of the cats disintegrated. £300 each for new cats, or £135 for the linked decat pipes.

It's actually 10dB louder (119dB vs 109dB) with the linked decats in place, but for some reason it seems quieter IMHO.

dean_ratpac

1,582 posts

307 months

Tuesday 11th April 2006
quotequote all
morebeanz said:
you know who you are! as I do, I don't even get flames despite having a de-cat!


more beanz, yours is quite quiet right?

lol
regarding getting done without cats, never heard of it - as for the boys in blue, they know TVR's are noisey.

>> Edited by dean_ratpac on Tuesday 11th April 14:57

cerby4.5

1,643 posts

270 months

Tuesday 11th April 2006
quotequote all
I have the std manifolds/cats and link pipes, along with the ACT Sports Tails. This is more than loud enough and pops and bangs like mad!!!!! (Just ask DougC and Leg1 who were behind me on the way to Mid Essex)
It fits well, looks good and is affordable, plus I have kept hold of the std backbox just in case I ever need to put it back on!

skunkwerks

155 posts

299 months

Tuesday 11th April 2006
quotequote all
i've got a stainless sports rear section and upon stripping it all down yesterday i found out that there are no cores in the cats either .To be perfectly honest its a little louder than i would like, though all the pops, bangs and general unrulyness on the overrun is amusing
I'm expecting problems at Oulton on trackdays so i may have to investigate some intermediate boxes before then

>> Edited by skunkwerks on Tuesday 11th April 18:51