Straight through silencer, ultimate stealth looks?

Straight through silencer, ultimate stealth looks?

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Discussion

hawkeye_wrx

Original Poster:

2 posts

92 months

Wednesday 13th July 2016
quotequote all
Hi all,

Was wanting to get a new exhaust system but due to some quite silly circumstances that we shall not discuss, I'm restricted to having the car look completely stock. In terms of improving the exhaust system for both performance and getting a better noise, would it be a viable option to chop open a standard backbox, take out all of the innards and weld in a straight pipe through the middle of it? I'm thinking combining this with a decat downpipe would give a lot more performance/noise while still looking 100% stock.

Stupid idea?

If so, does anyone know of any exhaust systems (doesn't have to be full system, cat-back is fine) that look very stock but still provide good performance gains when combined with a remap?

Car is a Hawkeye WRX (hence the name!)

Cheers

DaveV6

292 posts

207 months

Thursday 14th July 2016
quotequote all
Prodrive backbox is okay. I doubt you'll find an aftermarket exhaust with twin pipes like the standard one. Mate tried gutting his but didn't sound nice.

hawkeye_wrx

Original Poster:

2 posts

92 months

Thursday 14th July 2016
quotequote all
DaveV6 said:
Prodrive backbox is okay. I doubt you'll find an aftermarket exhaust with twin pipes like the standard one. Mate tried gutting his but didn't sound nice.
Would the Prodrive box be classed as a standard part? Or at least could it be argued that it is?

BenWRXSEi

2,343 posts

133 months

Thursday 14th July 2016
quotequote all
hawkeye_wrx said:
DaveV6 said:
Prodrive backbox is okay. I doubt you'll find an aftermarket exhaust with twin pipes like the standard one. Mate tried gutting his but didn't sound nice.
Would the Prodrive box be classed as a standard part? Or at least could it be argued that it is?
Dealer-fit option I think (along with the rest of the Prodrive Pack). Maybe an STI exhaust would do?

MDMA .

8,849 posts

100 months

Thursday 14th July 2016
quotequote all
just go to an exhaust place and get them to make you an exact replica, but in stainless steel ( mid section you can enlarge the bore as wont be seen ).

BCS ( powervalve ) have done a few.

Hrimfaxi

1,036 posts

126 months

Thursday 21st July 2016
quotequote all
DaveV6 said:
Prodrive backbox is okay. I doubt you'll find an aftermarket exhaust with twin pipes like the standard one. Mate tried gutting his but didn't sound nice.
Hayward and Scott make a stainless twin exit rear box thumbup



http://www.haywardandscott.com/subaru/impreza-new-...