Most cost effective way to improve a 4200's sound

CatmanV2

Member
Messages
48,987
Let me get this straight Cats > X-pipe > straight through pipe?

Standard Cats
Forum un-silenced X-pipe
Home made straight through rear boxes

That's what Spartacus has, and what I'm getting after having heard his.

Maverick is providing my back boxes as he *also* gutted his secondary cats (correct me if I'm wrong, Mav) which then made it *very* loud indeed with many pops and bangs on the overrun.

C
 

rockits

Member
Messages
9,191
You don't need hangers, mine hangs free from the centre section all the way to the back.
The rear boxes have hangers on them. If you delete the rear boxes you delete the hangers. The replacement rear pipes would need hangers would they not?
 

RSM Masser

Member
Messages
2,437
Oh and note that the standard pipes go from 3.25 to about 3 Inch at rears so the problem we had us that stainless has a wider diameter than the stick pipes. Routing the metalwork over the rear subframe was difficult because it ran so close to the Cv boots and handbrake cables so a decision was made to run under the subframe instead.

I like that and the sound!!!
I would be interested in getting the same done on mine - I am not too far away in Surrey, just off M25
 

CatmanV2

Member
Messages
48,987
The rear boxes have hangers on them. If you delete the rear boxes you delete the hangers. The replacement rear pipes would need hangers would they not?

I think I'd want hangers, but I can see with the reduction in weight they may not be absolutely necessary

C
 

Contigo

Sponsor
Messages
18,376
The rear boxes have hangers on them. If you delete the rear boxes you delete the hangers. The replacement rear pipes would need hangers would they not?

Yes they do but the stainless straight throughs have no hangers and the decision was made to not bother as it is very rigid anyway and the weight reduction made that a lot easier.
 

Tom4200

New Member
Messages
181
Think I'll do standard cats x pipe and straight through pipes keeping original boxes in garage
 

CatmanV2

Member
Messages
48,987
Think I'll do standard cats x pipe and straight through pipes keeping original boxes in garage

Yeah. Boxes are virtually give away as they are SS and simply never rust. I have a pair that I was going to mod, given to me by a forum member, a pair on the car and a pair I'm getting from Mav...

C
 

Tom4200

New Member
Messages
181
Well I think I'll just get some straight through pipes made and keep the boxes in the garage in case I hate it
 

Tom4200

New Member
Messages
181
I think it would be good to find someone we can all trust to do a good straight through job to open these cars up let's face it, why should we pay 2-3k for a Larini, I simply refuse such an absurd cost
 

maverick

Member
Messages
1,982
Standard Cats
Forum un-silenced X-pipe
Home made straight through rear boxes

That's what Spartacus has, and what I'm getting after having heard his.

Maverick is providing my back boxes as he *also* gutted his secondary cats (correct me if I'm wrong, Mav) which then made it *very* loud indeed with many pops and bangs on the overrun.

C

Yep that's correct catman
 

Spartacus

Member
Messages
3,190

Tom4200

New Member
Messages
181
That's absolutely perfect I guess I'll have the same effect with straight through pipes rather than a cut up box
 

Contigo

Sponsor
Messages
18,376
The only problem you have with non modified boxes is reproducing the tips but anything is possible :)