7 replies to this topic

[jackson-minis]

is the performance affected that much, ino all about the back pressure and that but truth is i like the noise how much of a difference would it make
i have a standard 998 with stage one kit 10.1 compression and hif38 carb will the performance be that reduced??
thanks everyone
gazz

[jackson-minis]

anyone plzzzzz lol
gazz

[Retro_10s]

Calm down dear! You're going to have to expect to wait a bit longer than 18 minutes for a reply. If people don't answer it's because they don't know or can't help!

The ideal bore of exhaust for your engine in it's current spec is about 1.75", which is a far cry from the DTM you intend to fit. Will you be fitting a hole new system or just the backbox?

[jackson-minis]

sorry mate didnt mean to appear impatient, yer ive got a maniflow cooper freeflow mani with a 1.75 link pipe
appologise once agen mate for appearing impatient
gazz

[Retro_10s]

okay, and Have you got a twin box system or a straight through link pipe?

[jackson-minis]

straight through link pipe mate

[Retro_10s]

Then I'd doubt you'd notice much difference at all. You might suffer a slight loss of 'get up and go' from low down in the rev range, but i'd be suprised.

Mate of mine used to have a DTM box on a 998, he kept it on for 2 weeks and then got rid of it. Too noisy, all show and no go, sounded like a big wet fart. but it was loud.

[mike.]

Just get an RC40. I'm planning on getting a twin box centre exit system with the large bore pipe. Should sound lovely and it'll give good performance too!