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10424 results for '2004 Audi S4 exhaust'
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CLA45 AMG vs RS3: Why the Mercedes Is the Smarter Buy(Post)
The Mercedes CLA45 AMG is one of the most undervalued compact performance sedans on the used market right now. While everyone fights over Audi RS3s and pays the five-cylinder tax, CLA45s with 30,000– ...
Are Downpipes Worth It? Real Dyno Numbers & Honest Verdict(Post)Are downpipes worth it? The short answer is: not alone. Across every turbocharged platform — from the N54 335i to the Evo X to the 10th-gen Civic Si — forum owners and tuners report the same thing. A ...
Are Test Pipes Worth It? Real Dyno Numbers & Honest Take(Post)Are test pipes worth it? If you've spent any time on VQ forums or Z-car build threads, you've seen the debate. Owners swear by the throttle response and exhaust note, while others rip theirs off with ...
405HP BMW M2 Competition - Why This Engine Makes All The Difference(Post)405HP BMW M2 Competition - Why This Engine Makes All The Difference The BMW M2 Competition is a firecracker of a sports car – a compact coupe with a big heart, packing 405 horsepower and 406 lb-ft ...
State Inspection Rules Banning Aftermarket Downpipes: GTI/WRX Impact(Post)Your catless downpipe just became a liability. Recent state inspection changes are quietly targeting aftermarket exhaust components with database cross-references and OBD scanner protocols that make ...
350Z VQ35DE Engine: The Bulletproof V6 That Makes 300HP for Pennies(Post)350Z VQ35DE Engine: The Bulletproof V6 That Makes 300HP for Pennies A bone stock Nissan 350Z recently gapped a BMW M3 at the track – the BMW owner spent $60K, the Z owner spent $10K. This perfectly ...
Catted vs Catless Downpipes: Why High-Flow Cats Make More Sense(Post)Most people buying downpipes are chasing the wrong number. Everyone thinks catless automatically means more power, but that's not how exhaust flow works. The real gains come from diameter, design, an ...
Stop Buying M3s - This $8k BMW Is Better(Post)Stop Buying M3s - This $8k BMW Is Better Forget the M3. If you're shopping for a used BMW performance car, there's a better option hiding in plain sight: the E90/E92 335i. This twin-turbocharged 3- ...
G37 Sport 6MT Build Guide: VQ37VHR Mod Order That Works(Post)The Infiniti G37 Sport 6MT is one of the last naturally aspirated, rear-wheel-drive, manual-transmission platforms where bolt-ons and a proper tune deliver a genuinely transformative result. The VQ37 ...
Acura TLX Type S: 3 Reasons This Sedan Is Underrated(Post)The Acura TLX Type S is quietly becoming one of the best performance sedan values on the used market. While enthusiasts fight over CT4-V Blackwings and C43 AMGs, this 355 hp turbo V6 AWD sedan deprec ...
ECU Tune Worth It? Real Dyno Numbers and Honest Verdict(Post)An ECU tune is the single highest horsepower-per-dollar modification you can make to a turbocharged car. That's not hype — it's backed by dyno sheets, forum data, and tens of thousands of miles of re ...
Lexus LC500 Build Guide: Mod Order That Works (2018-2026)(Post)The Lexus LC500 is the most underbuilt GT car on the market right now — and the owners who understand it aren't chasing horsepower. Toyota handed us a 471 hp naturally aspirated 5.0L V8 on a platform ...